Answers and Solutions to Text Problems

Size: px
Start display at page:

Download "Answers and Solutions to Text Problems"

Transcription

1 Atoms and Elements 2 Answers and Solutions to Text Problems 2.1 a. Cu b. Si c. K d. N e. Fe f. Ba g. Pb h. Sr 2.2 a. O b. Li c. S d. Al e. H f. Ne g. Sn h. Au 2.3 a. carbon b. chlorine c. iodine d. mercury e. fluorine f. argon g. zinc h. nickel 2.4 a. helium b. phosphorus c. sodium d. magnesium e. calcium f. bromine g. cadmium h. silicon 2.5 a. sodium and chlorine b. calcium, sulfur, and oxygen c. carbon, hydrogen, chlorine, nitrogen, and oxygen d. calcium, carbon, and oxygen 2.6 a. hydrogen and oxygen b. sodium, hydrogen, carbon, and oxygen c. sodium, oxygen, and hydrogen d. carbon, hydrogen, and oxygen 2.7 a. Period 2 b. Group 8A (18) c. Group 1A (1) d. Period a. Group 1A (1) b. Period 2 c. Group 8A (18) d. Group 7A (17) 2.9 a. alkaline earth b. transition element c. noble gas d. alkali metal e. halogen 2.10 a. noble gas b. alkaline earth metal c. transition element d. halogen e. alkaline earth metal 2.11 a. C b. He c. Na d. Ca e. Al 2.12 a. Be b. P c. Kr d. I e. Ge 2.13 On the periodic table, metals are elements located to the left the heavy zigzag line, while the nonmetals are elements to the right. a. metal b. nonmetal c. metal d. nonmetal e. nonmetal f. nonmetal g. metal h. metal 2.14 a. metal b. metal c. nonmetal d. metal e. nonmetal f. nonmetal g. nonmetal h. metal 2.15 a. electron b. proton c. electron d. neutron 2.16 a. neutron b. proton and neutron c. electron d. electron 2.17 The two most massive subatomic particles, protons and neutrons, are located in a very small region the atom, which is called the nucleus.

2 Chapter 2 Answers and Solutions 2.18 Because protons are present in the nucleus every element and protons are the positively charged subatomic particles Selection b (a proton and an electron) is the only one with a pair particles having opposite charges Selections a (two protons) and c (two electrons) are pairs particles having the same charge Because the hair strands repel one another, there must be like electrical charges on each strand Because the clothes cling to each other, there must be opposite electrical charges on the clothing a. atomic number b. both c. mass number d. atomic number 2.24 a. number protons and electrons, if a neutral atom b. number particles (protons plus neutrons) in the nucleus c. number neutrons d. nothing useful 2.25 a. lithium, Li b. fluorine, F c. calcium, Ca d. zinc, Zn e. neon, Ne f. silicon, Si g. iodine, I h. Oxygen, O 2.26 a. hydrogen, H b. sodium, Na c. potassium, K d. iron, Fe e. bromine, Br f. silver, Ag g. phosphorus, P h. helium, He 2.27 a. 12 b. 30 c. 53 d a. 6 b. 9 c. 20 d Name Element Symbol Atomic Mass Protons Neutrons Aluminum Al Magnesium Mg Potassium K Sulfur S Iron Fe Name Element Symbol Atomic Mass Protons Neutrons Nitrogen N Calcium Ca Strontium Sr Silicon Si Barium Ba Electrons Electrons 2.31 a. Since the atomic number aluminum is 13, every Al atom has 13 protons. An atom aluminum with a mass number 27 and an atomic number 13 has 14 neutrons = 14 n Therefore, 13 protons, 14 neutrons, 13 electrons b. 24 protons, 28 neutrons, 24 electrons c. 16 protons, 18 neutrons, 16 electrons d. 26 protons, 30 neutrons, 26 electrons

3 Atoms and Elements 2.32 a. 1 proton, 1 neutron, 1 electron b. 7 protons, 7 neutrons, 7 electrons c. 14 protons, 12 neutrons, 14 electrons d. 30 protons, 40 neutrons, 30 electrons 2.33 a. 31 P b. 80 Br c. 27 Al d. 35 Cl a. 18 O b. 9 Be c. 56 Fe d. 24 Na a. 32 S 33 S 34 S 36 S b. They all have the same atomic number, (the same number protons and electrons). c. They have different numbers neutrons, which is reflected in their mass numbers. d. The atomic mass sulfur on the periodic table is the average atomic mass all the naturally occurring isotopic masses To calculate the average atomic mass an element, I would need the actual mass and the percent abundance each naturally occurring isotope a. 84 Sr 86 Sr 87 Sr 88 Sr b. They all have the same atomic number, (the same number protons and electrons). c. They have different numbers neutrons, which is reflected in their mass numbers. d. The atomic mass strontium on the periodic table is the weighted average all the naturally occurring isotopic masses (60.1/100) = (39.9/100) = 28.3 thus = 69.8 amu (average mass) (0.0056) = (0.0986) = (0.0700) = ( ) = 72.7 total = = The electrons surrounding a nucleus have specific energies. Electrons with similar energies will be found grouped together within a specific energy level The first energy level is filled with two electrons. The second energy level can hold a maximum eight electrons. Because we are only considering the first twenty elements, the third energy level will have eight electrons present and the fourth energy level will have only two electrons in it a. 8 b. 5 c. 8 d. 0 e a. zero b. six c. five d. eight e. zero 2.45 a. 2, 4 b. 2, 8, 8 c. 2, 8, 6 d. 2, 8, 4 e. 2, 8, 3 f. 2, a. 2, 8, 5 b. 2, 8 c. 2, 6 d. 2, 8, 8 e. 2, 8, 3 f. 2, 8, a. Li b. Mg c. H d. Cl e. O 2.48 a. N b. S c. C d. Ar e. Al 2.49 a. gain b. emit 2.50 a. X-rays have higher energies than microwaves and radio waves. b. We shield ourselves from unnecessary exposure to x-rays because our tissues are damaged by high energies.

4 Chapter 2 Answers and Solutions 2.51 a. boron: 2, 3 aluminum: 2, 8, 3 b. Three c. Group 3A (3) 2.52 a. fluorine: 2, 7 chlorine: 2, 8, 7 b. Seven c. Group a. 2 e, Group 2A (2) b. 7 e, Group 7A (17) c. 6 e, Group 6A (16) d. 5 e, Group 5 A (5) e. 2 e, Group 2A (2) f. 7 e, Group 7A (17) 2.54 a. 1 e -, Group 1A (1) b. 4 e -, Group 4A (4) c. 8 e -, Group 8A (18) d. 8 e -, Group 8A (18) e. 4 e -, Group 4A (4) f. 1 e -, Group 1A (1) 2.55 Mg, Ca, and Sr have similar properties because they are members the same group (family) in the periodic table. Chemical properties are related to the number electrons in the outermost occupied energy level, and these three elements all have two electrons in their outermost shell Bromine and iodine (you could also have selected fluorine or astatine) would exhibit physical and chemical properties similar to chlorine An s subshell holds up to 2 electrons, a p subshell up to 6 electrons, a d subshell up to10 electrons, and an f subshell up to 14 electrons. An orbital holds up to two electrons. There is one orbital in an s subshell, 3 orbitals in a p subshell, 5 orbitals in a d subshell, and 7 orbitals in a f subshell. a. 2 electrons (orbital) b. 6 electrons c. 10 (s + p) d. 2 electrons 2.58 a. 2 electrons b. 2 electrons c. 18 (s + p + d) d. 2 electrons 2.59 a. 1s 2 2s 2 2p 6 3s 2 b. 1s 2 2s 2 2p 6 3s 2 3p 3 c. 1s 2 2s 2 2p 6 3s 2 3p 6 d. 1s 2 2s 2 2p 6 3s 2 3p 4 e. 1s 2 2s 2 2p 6 3s 2 3p 5 f. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 g. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 h. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p a. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1 b. 1s 2 2s 2 2p 6 3s 1 c. 1s 2 2s 2 d. 1s 2 2s 2 2p 3 e. 1s 2 2s 2 2p 2 f. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 g. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 5 h. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s a. hydrogen (H) b. nitrogen (N) c. sodium (Na) d. neon (Ne) e. silicon (Si) f. bromine (Br) 2.62 a. carbon (C) b. lithium (Li) c. sulfur (S) d. calcium (Ca) e. sulfur (S) f. strontium (Sr) 2.63 Any element with a two-letter symbol has the first letter capitalized and the second letter in lower case. CO would indicate a compound made the two elements carbon and oxygen a. Incorrect. The symbol for copper is Cu b. Incorrect. The symbol for silicon is Si. c. Correct as written d. Incorrect. The symbol for fluorine is F. e. Incorrect. The symbol for potassium is K f. Correct as written g. Correct as written h. Incorrect. The symbol for lead is Pb a. Mg, magnesium b. Br, bromine c. Al, aluminum d. O, oxygen 2.66 a. Group 1, period 4 b. Group 5, period 3 c. Group 4, period 2 d. Group 8, period a. The proton is a positive particle. b. Electrons are found outside the nucleus. c. The nucleus is the smallest part the atom. d. The electron has a negative charge. e. Most the mass the atom is due to its protons and neutrons a. 1 proton, 1 neutron b. 17 protons, 20 neutrons c. 48 protons, 58 neutrons d. 83 protons, 126 neutrons

5 2.69 a. 26 protons, 30 neutrons, 26 electrons b. 51 Fe c. 51 Cr Atoms and Elements 2.70 No. The atomic mass is the weighted average the eight naturally occurring isotopic masses a. Atoms are the smallest particles an element that retain the properties that element. Isotopes are atoms an element with a specific mass number (specific number neutrons). b. The atomic number indicates the number protons found in the nucleus an atom. (It is also equal to the number electrons present in a neutral atom.) The mass number indicates the total number particles (protons plus neutrons) present in the nucleus a particular atom a. An elemental symbol is the unique one- or two-letter shorthand notation used for each element found on the periodic table. An atomic symbol specifies a single isotope an element. b. The atomic number indicates the number protons found in the nucleus an atom. (It is also equal to the number electrons present in a neutral atom.) Atomic mass is the actual mass a particular isotope an element a. 16 X 17 X b. 16 X 17 X X All have 8 protons 18 X All are isotopes oxygen c. 16 X 16 X Mass number X 18 X Mass number d. 16 X 18 X Both have 8 neutrons a. 64 Zn 66 Zn 67 Zn 68 Zn 70 Zn b. All these isotopes contain 30 protons and 30 electrons. Zinc-64 contains 34 neutrons, Zinc-66 contains 36 neutrons, Zinc-67 contains 37 neutrons, Zinc-68 contains 38 neutrons, and Zinc-70 contains 40 neutrons Portion mass due to copper-63: (63 amu 0.692) = 43.6 amu Portion mass due to copper-65: (65 amu 0.308) = 20.0 amu Adding these numbers yields the weighted average atomic mass for copper: = 63.6 amu 2.76 Portion mass due to Magnesium-24: (24 amu 0.790) = [ ] 19.0 amu Portion mass due to Magnesium-25: (25 amu 0.100) = [ 2.5 ] 2.50 amu Portion mass due to Magnesium-26: (26 amu 0.110) = [ 2.86 ] 2.86 amu Adding the numbers gives the weighted average atomic mass magnesium: = 24.4 amu in cm 1 atom = atoms 1 in x 10 8 cm cc 11.3 g 1 atom = 6.6 x atoms 1 cc 3.4 x g 2.79 Any two the following in each part are correct responses: a. helium, beryllium, magnesium, calcium, strontium, barium, and radium b. oxygen, sulfur, selenium, tellurium, and polonium c. neon, argon, krypton, xenon, and radon d. boron, aluminum, gallium, indium, and thallium

6 Chapter 2 Answers and Solutions 2.80 a. Atomic mass is the actual mass a particular isotope an element. The average atomic mass is the weighted average all naturally occurring isotopic masses. b. Atoms are the smallest particles an element that retain the properties that element. A nucleus is the very small region within an atom which contains all that atom s protons and neutrons Any two the following in each part are correct responses: a. fluorine, chlorine, bromine, iodine, and astatine b. helium, neon, argon, krypton, xenon, and radon c. lithium, sodium, potassium, rubidium, cesium, and francium d. beryllium, magnesium, calcium, strontium, barium, and radium 2.82 a. metal b. metal c. metal d. nonmetal e. metal f. nonmetal g. metal h. metal 2.83 a. 3 b. 3 c. 10 d a. Ga, gallium b. C, carbon c. Rb, rubidium d. Ti, titanium e. Kr, krypton 2.86 a. phosphorus b. sulfur c. indium d. gallium e. radium f. potassium 2.87 a. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 3 or [Ar] 4s 2 3d 10 4p 3 b. 1 s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 1 or [Kr] 5s 1 c. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 or [Xe] 6s 2 d. 1s 2 2s 2 2p 6 3s 2 3p 2 or [Ne] 3s 2 3p 2 e. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 5 or [Ar] 4s 2 3d 10 4p a. F, fluorine b. Al, aluminum c. Fe, iron d. Ar, argon e. Cd, cadmium f. Cs, cesium

47374_04_p25-32.qxd 2/9/07 7:50 AM Page 25. 4 Atoms and Elements

47374_04_p25-32.qxd 2/9/07 7:50 AM Page 25. 4 Atoms and Elements 47374_04_p25-32.qxd 2/9/07 7:50 AM Page 25 4 Atoms and Elements 4.1 a. Cu b. Si c. K d. N e. Fe f. Ba g. Pb h. Sr 4.2 a. O b. Li c. S d. Al e. H f. Ne g. Sn h. Au 4.3 a. carbon b. chlorine c. iodine d.

More information

Chapter 2 Atoms and the Periodic Table

Chapter 2 Atoms and the Periodic Table Chapter 2 1 Chapter 2 Atoms and the Periodic Table Solutions to In-Chapter Problems 2.1 Each element is identified by a one- or two-letter symbol. Use the periodic table to find the symbol for each element.

More information

ATOMIC THEORY. Name Symbol Mass (approx.; kg) Charge

ATOMIC THEORY. Name Symbol Mass (approx.; kg) Charge ATOMIC THEORY The smallest component of an element that uniquely defines the identity of that element is called an atom. Individual atoms are extremely small. It would take about fifty million atoms in

More information

CHEM 1180 Fall 2015 Element Quiz A 28 AUG 15. Guard your quiz and conduct yourself properly. Spelling counts!

CHEM 1180 Fall 2015 Element Quiz A 28 AUG 15. Guard your quiz and conduct yourself properly. Spelling counts! CHEM 1180 Fall 2015 Element Quiz A 28 AUG 15 a) Chromium Cr b) Lithium Li c) Thallium Tl d) Tellurium Te e) Cadmium Cd f) Vanadium V g) Titanium Ti h) Sulfur S i) Silicon Si j) Beryllium Be a) Mn Manganese

More information

Atomic Theory: The Nuclear Model of the Atom

Atomic Theory: The Nuclear Model of the Atom Chapter 5 Atomic Theory: The Nuclear Model of the Atom Section 5.1 Dalton s Atomic Theory Goal 1 Precursors to John Dalton s atomic theory Law of Definite Composition The percentage by mass of the elements

More information

Homework Chapter 03 Chemistry 51 Los Angeles Mission College

Homework Chapter 03 Chemistry 51 Los Angeles Mission College 3.93 Give the period and group number for each of the following elements: a. bromine b. argon c. potassium d. radium 3.94 Give the period and group number for each of the following elements: a. radon b.

More information

UNIT (2) ATOMS AND ELEMENTS

UNIT (2) ATOMS AND ELEMENTS UNIT (2) ATOMS AND ELEMENTS 2.1 Elements An element is a fundamental substance that cannot be broken down by chemical means into simpler substances. Each element is represented by an abbreviation called

More information

Chapter 2 Atoms, Ions, and the Periodic Table

Chapter 2 Atoms, Ions, and the Periodic Table Chapter 2 Atoms, Ions, and the Periodic Table 2.1 (a) neutron; (b) law of conservation of mass; (c) proton; (d) main-group element; (e) relative atomic mass; (f) mass number; (g) isotope; (h) cation; (i)

More information

SAI. Protons Electrons Neutrons Isotope Name. Isotope Symbol 131i S3 1. Atomic Number. Mass Number

SAI. Protons Electrons Neutrons Isotope Name. Isotope Symbol 131i S3 1. Atomic Number. Mass Number ATOMIC STRUCTURE AND THE PERIODIC TABLE CHAPTER 4 WORKSHEET PART A Given the following isotopes, determine the atomic number, the mass number, the number of protons, electrons and neutrons. Isotope Symbol

More information

Lithium Atomic number: 3 Atomic weight: 7 State of matter: solid Protons: 3 Neutrons (usually): 4 Electrons: 3 Number of electron shells:

Lithium Atomic number: 3 Atomic weight: 7 State of matter: solid Protons: 3 Neutrons (usually): 4 Electrons: 3 Number of electron shells: Hydrogen Atomic number: 1 Atomic weight: 1 Protons: 1 Neutrons (usually): 0 Electrons: 1 H Helium Atomic number: 2 Atomic weight: 4 Protons: 2 Neutrons (usually): 2 Electrons: 2 He Lithium Atomic number:

More information

Periodic Table Questions

Periodic Table Questions Periodic Table Questions 1. The elements characterized as nonmetals are located in the periodic table at the (1) far left; (2) bottom; (3) center; (4) top right. 2. An element that is a liquid at STP is

More information

Periodic Table Packet #1

Periodic Table Packet #1 Directions: Answer the questions with the proper information using your notes, book, and the periodic table. 1. Define a family. 2. What is a period? 3. What is the symbol for the following elements. a.

More information

The Nature of Chemistry

The Nature of Chemistry CHAPTER 1 The Nature of Chemistry Objectives You will be able to do the following. 1. Describe how science in general is done. 2. Given a description of a property of a substance, identify the property

More information

Page Which element is a noble gas? (1) krypton (3) antimony (2) chlorine (4) manganese

Page Which element is a noble gas? (1) krypton (3) antimony (2) chlorine (4) manganese 1. Which characteristics describe most nonmetals in the solid phase? (1) They are malleable and have metallic luster. (2) They are malleable and lack metallic luster. (3) They are brittle and have metallic

More information

Electron Configurations

Electron Configurations SECTION 4.3 Electron Configurations Bohr s model of the atom described the possible energy states of the electron in a hydrogen atom. The energy states were deduced from observations of hydrogen s emissionline

More information

Chemistry CP Unit 2 Atomic Structure and Electron Configuration. Learning Targets (Your exam at the end of Unit 2 will assess the following:)

Chemistry CP Unit 2 Atomic Structure and Electron Configuration. Learning Targets (Your exam at the end of Unit 2 will assess the following:) Chemistry CP Unit 2 Atomic Structure and Electron Learning Targets (Your exam at the end of Unit 2 will assess the following:) 2. Atomic Structure and Electron 2-1. Give the one main contribution to the

More information

The Atom Atomic Number Mass Number Isotopes

The Atom Atomic Number Mass Number Isotopes The Atom Atomic Number Mass Number Isotopes 1 Atomic Theory Atoms are building blocks of elements Similar atoms in each element Different from atoms of other elements Two or more different atoms bond in

More information

The Periodic Table: Chapter Problems Periodic Table Class Work Homework Special Groups Class Work Homework Periodic Families Class Work

The Periodic Table: Chapter Problems Periodic Table Class Work Homework Special Groups Class Work Homework Periodic Families Class Work The Periodic Table: Chapter Problems Periodic Table 1. As you move from left to right across the periodic table, how does atomic number change? 2. What element is located in period 3, group 13? 3. What

More information

PERIODIC TABLE OF ELEMENTS., a Russian scientist is credited with creating the periodic table.

PERIODIC TABLE OF ELEMENTS., a Russian scientist is credited with creating the periodic table. PERIODIC TABLE OF ELEMENTS, a Russian scientist is credited with creating the periodic table. Periods tell us how many are in the atoms of each element. Groups help us to know how many electrons are in

More information

Electrons/Periodic Table Review Packet

Electrons/Periodic Table Review Packet http://www.carolina.com/teacher-resources/interactive/online-game-cell-structure-cellcraftbiology/tr11062.tr T. Trimpe 2007 http://sciencespot.net/ Part C: Electron Configuration 12. How many electrons

More information

2. John Dalton did his research work in which of the following countries? a. France b. Greece c. Russia d. England

2. John Dalton did his research work in which of the following countries? a. France b. Greece c. Russia d. England CHAPTER 3 1. Which combination of individual and contribution is not correct? a. Antoine Lavoisier - clarified confusion over cause of burning b. John Dalton - proposed atomic theory c. Marie Curie - discovered

More information

Chapter 3 Atoms and Elements

Chapter 3 Atoms and Elements Chapter 3 Atoms and Elements 1 Elements Elements are pure substances that cannot be separated into simpler substances by ordinary laboratory processes the building blocks of matter listed on the inside

More information

Untitled Document. 1. Which of the following best describes an atom? 4. Which statement best describes the density of an atom s nucleus?

Untitled Document. 1. Which of the following best describes an atom? 4. Which statement best describes the density of an atom s nucleus? Name: Date: 1. Which of the following best describes an atom? A. protons and electrons grouped together in a random pattern B. protons and electrons grouped together in an alternating pattern C. a core

More information

B) atomic number C) both the solid and the liquid phase D) Au C) Sn, Si, C A) metal C) O, S, Se C) In D) tin D) methane D) bismuth B) Group 2 metal

B) atomic number C) both the solid and the liquid phase D) Au C) Sn, Si, C A) metal C) O, S, Se C) In D) tin D) methane D) bismuth B) Group 2 metal 1. The elements on the Periodic Table are arranged in order of increasing A) atomic mass B) atomic number C) molar mass D) oxidation number 2. Which list of elements consists of a metal, a metalloid, and

More information

Unit 2: Atomic Theory Practice Packet

Unit 2: Atomic Theory Practice Packet Unit 2: Atomic Theory Practice Packet 1 Name History of Atomic Theory Period Fill in the missing information in the chart below: Name of Researcher Equipment Sketch of Model Major Idea/Discovery N/A All

More information

Chapter 3 Applying Your Knowledge- Even Numbered

Chapter 3 Applying Your Knowledge- Even Numbered Chapter 3 Applying Your Knowledge- Even Numbered 2. Elements in a specific compound are always present in a definite proportion by mass; for example, in methane, CH 4, 12 g of carbon are combined with

More information

Find a pair of elements in the periodic table with atomic numbers less than 20 that are an exception to the original periodic law.

Find a pair of elements in the periodic table with atomic numbers less than 20 that are an exception to the original periodic law. Example Exercise 6.1 Periodic Law Find the two elements in the fifth row of the periodic table that violate the original periodic law proposed by Mendeleev. Mendeleev proposed that elements be arranged

More information

2. All of the atoms of argon have the same. 1. The atomic number of an atom is always equal to the total number of. A. mass number B.

2. All of the atoms of argon have the same. 1. The atomic number of an atom is always equal to the total number of. A. mass number B. 1. The atomic number of an atom is always equal to the total number of A. neutrons in the nucleus B. protons in the nucleus 2. All of the atoms of argon have the same A. mass number B. atomic number C.

More information

1. Structure and Properties of the Atom

1. Structure and Properties of the Atom SACE Stage 1 Chemistry - The Essentials 1. Structure and Properties of the Atom 1.1 Atoms: A simple definition of the atom is that it is the smallest particle that contains the properties of that element.

More information

MODERN ATOMIC THEORY AND THE PERIODIC TABLE

MODERN ATOMIC THEORY AND THE PERIODIC TABLE CHAPTER 10 MODERN ATOMIC THEORY AND THE PERIODIC TABLE SOLUTIONS TO REVIEW QUESTIONS 1. Wavelength is defined as the distance between consecutive peaks in a wave. It is generally symbolized by the Greek

More information

TEST NAME: Chemistry ES 1.3 TEST ID: GRADE:11 SUBJECT:Life and Physical Sciences TEST CATEGORY: My Classroom

TEST NAME: Chemistry ES 1.3 TEST ID: GRADE:11 SUBJECT:Life and Physical Sciences TEST CATEGORY: My Classroom TEST NAME: Chemistry ES 1.3 TEST ID: 61960 GRADE:11 SUBJECT:Life and Physical Sciences TEST CATEGORY: My Classroom Chemistry ES 1.3 Page 1 of 10 Student: Class: Date: 1. The electron configuration of an

More information

Elements and the Periodic Table

Elements and the Periodic Table Chapter 2 Elements and the Periodic Table Student Textbook page 37 1. Problem Copy the table below into your notebook. Fill in the missing information. Use a periodic table if you need help in identifying

More information

Unit 7 Review. Name: Class: Date: Multiple Choice Identify the choice that best completes the statement or answers the question.

Unit 7 Review. Name: Class: Date: Multiple Choice Identify the choice that best completes the statement or answers the question. Name: Class: Date: ID: A Unit 7 Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1) In which set of elements would all members be expected to have very

More information

1 Arranging the Elements

1 Arranging the Elements CHAPTER 12 1 Arranging the Elements SECTION The Periodic Table BEFORE YOU READ After you read this section, you should be able to answer these questions: How are elements arranged on the periodic table?

More information

1. Structure and Properties of the Atom

1. Structure and Properties of the Atom 1. Structure and Properties of the Atom 1.1 Atoms: A simple definition of the atom is that it is the smallest particle that contains the properties of that element. The idea of atoms was first suggested

More information

Name. Worksheet: Periodic Trends. 11. Which sequence of elements is arranged in order of decreasing atomic radii?

Name. Worksheet: Periodic Trends. 11. Which sequence of elements is arranged in order of decreasing atomic radii? 1. Which statement best describes Group 2 elements as they are considered in order from top to bottom of the Periodic Table? (A) The number of principal energy levels increases, and the number of valence

More information

Atomic Structure. 1. What is the total number of electrons in the 2p sublevel of a chlorine atom in the ground state? (1) 6; (2) 2; (3) 3; (4) 5.

Atomic Structure. 1. What is the total number of electrons in the 2p sublevel of a chlorine atom in the ground state? (1) 6; (2) 2; (3) 3; (4) 5. Atomic Structure 1. What is the total number of electrons in the 2p sublevel of a chlorine atom in the ground state? (1) 6; (2) 2; (3) 3; (4) 5. 2. Which is the electron configuration of an atom in the

More information

The Periodic Table. Name: Class: Date: ID: A. Multiple Choice Identify the choice that best completes the statement or answers the question:

The Periodic Table. Name: Class: Date: ID: A. Multiple Choice Identify the choice that best completes the statement or answers the question: Name: Class: Date:, ID: A The Periodic Table Multiple Choice Identify the choice that best completes the statement or answers the question: 1. What are the elements with atomic numbers from 58 to 71 called?

More information

3. What would you predict for the intensity and binding energy for the 3p orbital for that of sulfur?

3. What would you predict for the intensity and binding energy for the 3p orbital for that of sulfur? PSI AP Chemistry Periodic Trends MC Review Name Periodic Law and the Quantum Model Use the PES spectrum of Phosphorus below to answer questions 1-3. 1. Which peak corresponds to the 1s orbital? (A) 1.06

More information

CHAPTER 10 MODERN ATOMIC THEORY AND THE PERIODIC TABLE SOLUTIONS TO REVIEW QUESTIONS

CHAPTER 10 MODERN ATOMIC THEORY AND THE PERIODIC TABLE SOLUTIONS TO REVIEW QUESTIONS HEINS10-118-128v4.qxd 12/30/06 2:05 PM Page 118 CHAPTER 10 MODERN ATOMIC THEORY AND THE PERIODIC TABLE SOLUTIONS TO REVIEW QUESTIONS 1. An electron orbital is a region in space around the nucleus of an

More information

SCPS Chemistry Worksheet Periodicity A. Periodic table 1. Which are metals? Circle your answers: C, Na, F, Cs, Ba, Ni

SCPS Chemistry Worksheet Periodicity A. Periodic table 1. Which are metals? Circle your answers: C, Na, F, Cs, Ba, Ni SCPS Chemistry Worksheet Periodicity A. Periodic table 1. Which are metals? Circle your answers: C, Na, F, Cs, Ba, Ni Which metal in the list above has the most metallic character? Explain. Cesium as the

More information

Chapter 6: The Periodic Table Study Guide

Chapter 6: The Periodic Table Study Guide Chapter 6: The Periodic Table Study Guide I. General organization of table A. Modern periodic table 1. Increasing atomic number B. 3 major blocks 1. Metals a. Mostly solids at room temperature b. Conduct

More information

IPS Unit 8 Periodic Table Review Worksheet

IPS Unit 8 Periodic Table Review Worksheet Name: Period: IPS Unit 8 Periodic Table Review Worksheet Directions: Use the terms below to correctly complete the statements. Write the terms in the blanks to the left. Then find and circle each term

More information

Science and technology 404

Science and technology 404 Name Date STUDY GUIDE CHAPTER 1 ATOMS AND ELEMENTS 1) DESCRIBE THE RUTHERFORD-BOHR ATOMIC MODEL All matter is made of small particles called atoms. An atom is the smallest unit of matter that retains the

More information

The idea of arranging the elements in the periodic table according to their chemical and physical properties is attributed to. d) Ramsay.

The idea of arranging the elements in the periodic table according to their chemical and physical properties is attributed to. d) Ramsay. Chemistry I PERIODIC TABLE PRACTICE QUIZ Mr. Scott Select the best answer. 1) The idea of arranging the elements in the periodic table according to their chemical and physical properties is attributed

More information

Unit 3 Study Guide: Electron Configuration & The Periodic Table

Unit 3 Study Guide: Electron Configuration & The Periodic Table Name: Teacher s Name: Class: Block: Date: Unit 3 Study Guide: Electron Configuration & The Periodic Table 1. For each of the following elements, state whether the element is radioactive, synthetic or both.

More information

Lesson Outline for Teaching

Lesson Outline for Teaching Lesson Outline for Teaching Lesson 1: Using the Periodic Table A. What is the periodic table? 1. The periodic table is a chart of the elements arranged into rows and columns according to their chemical

More information

Chapter 2 The Structure of Matter and the Chemical Elements

Chapter 2 The Structure of Matter and the Chemical Elements 9 Chapter 2 The Structure of Matter and the Chemical Elements Review Skills 2.1 Solids, Liquids, and Gases Solids Liquids Gases Internet: The Structure of Matter 2.2 The Chemical Elements Internet: Element

More information

Use the PES spectrum of Phosphorus below to answer questions 1-3.

Use the PES spectrum of Phosphorus below to answer questions 1-3. Use the PES spectrum of Phosphorus below to answer questions 1-3. 1. Which peak corresponds to the 1s orbital? (A) 1.06 (B) 1.95 (C) 13.5 (D) 18.7 (E) 208 2. Which peak corresponds to the valence 3p orbital?

More information

The Periodic Table. Representative Elements. Before You Read. Read to Learn

The Periodic Table. Representative Elements. Before You Read. Read to Learn chapter 15 3 The Periodic Table section 2 Representative Elements What You ll Learn the properties of representative elements uses for the representative elements to group elements based on similar properties

More information

Directions: Multiple Choice For each of the following questions, choose the answer that best answers the question and place it on your answer sheet.

Directions: Multiple Choice For each of the following questions, choose the answer that best answers the question and place it on your answer sheet. CHEMISTRY TEST: THE PERIODIC TABLE Directions: Multiple Choice For each of the following questions, choose the answer that best answers the question and place it on your answer sheet. 1. Which of the following

More information

Question 1: Did Dobereiner s triads also exist in the columns of Newlands Octaves? Compare and find out. Only one triad of Dobereiner s triads exists in the columns of Newlands octaves. The triad formed

More information

Name: Period: Date: Unit 3 Practice Review (the questions on the test are NOT the same as the review questions)

Name: Period: Date: Unit 3 Practice Review (the questions on the test are NOT the same as the review questions) Name: Period: Date: Unit 3 Review: things you will need to know 1. Atomic Theories: Know all the scientists in order. What did they discover? What experiment did they use? 2. Development of the periodic

More information

Isotopes. Isotopes are written with the name followed by a hyphen and the mass number. Symbol notation is when we write it like this: and O

Isotopes. Isotopes are written with the name followed by a hyphen and the mass number. Symbol notation is when we write it like this: and O Isotopes Isotopes are atoms of the same element that have different masses due to different numbers of neutrons. See the example below for two isotopes of oxygen. One has 8 neutrons while the other has

More information

Chapter 6. Periodic Relationships Among the Elements

Chapter 6. Periodic Relationships Among the Elements Chapter 6. Periodic Relationships Among the Elements Student: 1. The nineteenth century chemists arranged elements in the periodic table according to increasing A. atomic number. B. number of electrons.

More information

What is the atomic mass of Iridium? What is the atomic number Chromium? What is the charge of a neutron?

What is the atomic mass of Iridium? What is the atomic number Chromium? What is the charge of a neutron? How many protons are in oxygen? 1 What is the atomic mass of Iridium? 192 What is the number of protons and neutrons in Niobium? 93 How many electrons in Potassium? 19 What is the atomic number Chromium?

More information

Periodic Table Extra Practice

Periodic Table Extra Practice Periodic Table Extra Practice 1. Which of the following elements in Period 3 has the greatest metallic character? 1) Ar 3) Mg 2) Si 4) S 2. Which sequence of atomic numbers represents elements which have

More information

ATOMS AND THE PERIODIC TABLE

ATOMS AND THE PERIODIC TABLE ATOMS AND THE PERIODIC TABLE Physical Science 2nd Semester NAME: CLASS PERIOD: TEACHER: ASSIGNMENT/PAGE NUMBERS DUE DATE POINTS EARNED Periodic Table of Elements pg. 1 Atomic Structure Learning Targets

More information

Test 7: Periodic Table Review Questions

Test 7: Periodic Table Review Questions Name: Wednesday, January 16, 2008 Test 7: Periodic Table Review Questions 1. Which halogen is a solid at STP? 1. fluorine 3. bromine 2. chlorine 4. iodine 2. Element M is a metal and its chloride has the

More information

14A Atomic Structure. What is inside an atom? Modeling an atom. Thinking about the atom. Atomic Structure Investigation 14A.

14A Atomic Structure. What is inside an atom? Modeling an atom. Thinking about the atom. Atomic Structure Investigation 14A. Atomic Structure Investigation 14A 14A Atomic Structure What is inside an atom? We once believed that atoms were the smallest units of matter. Then it was discovered that there are even smaller particles

More information

PSI AP Chemistry Unit 2: Free Response CW/HW. The Periodic Law and Ionic Charge Classwork: 1. The PES spectrum for an element can be found below:

PSI AP Chemistry Unit 2: Free Response CW/HW. The Periodic Law and Ionic Charge Classwork: 1. The PES spectrum for an element can be found below: PSI AP Chemistry Unit 2: Free Response CW/HW Name The Periodic Law and Ionic Charge Classwork: 1. The PES spectrum for an element can be found below: Intensity 0.63 0.77 3.24 5.44 39.2 48.5 433 Binding

More information

Warm Up: Using your periodic table, answer the following quetsions

Warm Up: Using your periodic table, answer the following quetsions Warm Up: Using your periodic table, answer the following quetsions 1. Element 21's state 2. Number of metalloids 3. Number of liquids 4. Element 4 is a metal/nonmetal/metalloid. 5. Order from least to

More information

NAME DATE CLASS TEST DATE:

NAME DATE CLASS TEST DATE: NAME DATE CLASS 1 TEST DATE: NAME DATE CLASS 2 Vocabulary Chapter 10 Atomic Structure and The Periodic Table Atomic number Average atomic mass Chemical symbol Dot diagram Electron cloud Electrons Groups

More information

Teaching Tips for Lesson 9: Ionization Energy

Teaching Tips for Lesson 9: Ionization Energy Teaching Tips for Lesson 9: Ionization Energy Game Plan: A. Review valence electron numbers and dot notations for various element families. Review the names of the element families. B. Read text together

More information

Unit 6 The periodic table

Unit 6 The periodic table Unit 6 The periodic table How to group elements together? Elements of similar properties would be group together for convenience. The periodic table Chemists group elements with similar chemical properties

More information

Trends in Periodic Table

Trends in Periodic Table Name: Date: 1. In the modern Periodic Table, the elements are arranged in order of increasing A. atomic number B. mass number C. oxidation number D. valence number 6. As the elements in Group IA are considered

More information

CHM101 Lab The Periodic Table and Atomic Structure Grading Rubric

CHM101 Lab The Periodic Table and Atomic Structure Grading Rubric Name Team Name CHM101 Lab The Periodic Table and Atomic Structure Grading Rubric To participate in this lab you must have splash- proof goggles, proper shoes and attire. Criteria Points possible Points

More information

The Periodic Table and Chemical Properties

The Periodic Table and Chemical Properties 2.2 The Periodic Table and Chemical Properties The periodic table organizes the elements according to their properties. Elements are listed in rows by increasing order of atomic number. Rows are arranged

More information

Chemistry/Additional Science

Chemistry/Additional Science Write your name here Surname Other names Edexcel GCSE Centre Number Candidate Number Chemistry/Additional Science Unit C2: Discovering Chemistry Foundation Tier Wednesday 7 November 2012 Morning Time:

More information

Chemistry: The Periodic Table and Periodicity

Chemistry: The Periodic Table and Periodicity Chemistry: The Periodic Table and Periodicity Name: Hour: Date: Directions: Answer each of the following questions. You need not use complete sentences. 1. Who first published the classification of the

More information

Elements make up the periodic table.

Elements make up the periodic table. Page of 7 KEY CONCEPT Elements make up the periodic table. BEFORE, you learned Atoms have a structure Every element is made from a different type of atom NOW, you will learn How the periodic table is organized

More information

Chemistry: The Periodic Table and Periodicity

Chemistry: The Periodic Table and Periodicity Chemistry: The Periodic Table and Periodicity Name: per: Date:. 1. By what property did Mendeleev arrange the elements? 2. By what property did Moseley suggest that the periodic table be arranged? 3. What

More information

1. According to the modern model of the atom, the nucleus of an atom is surrounded by one or more

1. According to the modern model of the atom, the nucleus of an atom is surrounded by one or more 1. According to the modern model of the atom, the nucleus of an atom is surrounded by one or more 8. The diagram below represents the nucleus of an atom. A) electrons B) neutrons C) positrons D) protons

More information

ATOMS A T O M S, I S O T O P E S, A N D I O N S. The Academic Support Center @ Daytona State College (Science 120, Page 1 of 39)

ATOMS A T O M S, I S O T O P E S, A N D I O N S. The Academic Support Center @ Daytona State College (Science 120, Page 1 of 39) ATOMS A T O M S, I S O T O P E S, A N D I O N S The Academic Support Center @ Daytona State College (Science 120, Page 1 of 39) THE ATOM All elements listed on the periodic table are made up of atoms.

More information

Unit 2 Atomic Structure

Unit 2 Atomic Structure Unit 2 Atomic Structure Progress Tracker Test Date: Learning Objectives 2.1 Atomic Structure 2.2 Periodic Table 2.3 Electron Configuration Webassign Due Score 2.1 Atomic Structure and Ion Structure Packet

More information

CHM1 Review for Exam Which of the following elements has the highest electronegativity

CHM1 Review for Exam Which of the following elements has the highest electronegativity The following are topics and sample questions for the first exam. Topics 1. Mendeleev and the first periodic Table 2. Information in the Periodic Table a. Groups (families) i. Alkali (group 1) ii. Alkaline

More information

The Periodic Table and Periodic Law

The Periodic Table and Periodic Law The Periodic Table and Periodic Law Section 6.1 Development of the Modern Periodic Table In your textbook, reads about the history of the periodic table s development. Use each of the terms below just

More information

2. What happens to the number of protons and electrons in atoms across a period on the periodic table?

2. What happens to the number of protons and electrons in atoms across a period on the periodic table? Name Period Date Honors Chemistry - Periodic Trends Check Your Understanding Answer the following, formulating responses in your own words. (This helps you better understand the concepts) 1. Define shielding

More information

The Advanced Placement Examination in Chemistry. Part I Multiple Choice Questions Part II Free Response Questions Selected Questions from1970 to 2010

The Advanced Placement Examination in Chemistry. Part I Multiple Choice Questions Part II Free Response Questions Selected Questions from1970 to 2010 The Advanced Placement Examination in Chemistry Part I Multiple Choice Questions Part II Free Response Questions Selected Questions from1970 to 2010 Atomic Theory and Periodicity Part I 1984 1. Which of

More information

Scientists create models to understand how things work, including atoms.

Scientists create models to understand how things work, including atoms. CHEM100 Week 4 Notes Page 1 of 6 Scientists create models to understand how things work, including atoms. Dalton created a theory for the atom with these 5 postulates 1. Elements consist of one or more

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Chem2A_Ch3_PT MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The smallest amount of an element that retains that elementʹs characteristics is

More information

Name period AP chemistry Unit 2 worksheet Practice problems

Name period AP chemistry Unit 2 worksheet Practice problems Name period AP chemistry Unit 2 worksheet Practice problems 1. What are the SI units for a. Wavelength of light b. frequency of light c. speed of light Meter hertz (s -1 ) m s -1 (m/s) 2. T/F (correct

More information

Electrons in Atoms & Periodic Table Chapter 13 & 14 Assignment & Problem Set

Electrons in Atoms & Periodic Table Chapter 13 & 14 Assignment & Problem Set Electrons in Atoms & Periodic Table Name Warm-Ups (Show your work for credit) Date 1. Date 2. Date 3. Date 4. Date 5. Date 6. Date 7. Date 8. Electrons in Atoms & Periodic Table 2 Study Guide: Things You

More information

Chemistry/Additional Science

Chemistry/Additional Science Write your name here Surname Other names Pearson Edexcel GCSE Centre Number Candidate Number Chemistry/Additional Science Unit C2: Discovering Chemistry Higher Tier Tuesday 10 June 2014 Afternoon Time:

More information

Name: Class: Date: Chapter 4 & 5 Review

Name: Class: Date: Chapter 4 & 5 Review Name: Class: Date: Chapter 4 & 5 Review 1. Unlike Democritus, Aristotle did not believe that matter was composed of tiny, indivisible. 2. The results of Rutherford s gold foil experiment demonstrated that

More information

How Atoms Interact with Each Other

How Atoms Interact with Each Other Active Chemistry The Periodic Table Active Chemistry The Periodic Table Activity 8 ow Atoms Interact with Each Other GOALS In this activity you will: Relate patterns in ionization energies of elements

More information

Periodic Table Of The Elements

Periodic Table Of The Elements H Hydrogen NOTE: The classification of some elements, especially METALLOIDS and OTHER METALS, is often artbitrary because these elements have characteristics of both 8 9 0 Li Be metals and nonmetals. As

More information

Chapter 8 Atomic Electronic Configurations and Periodicity

Chapter 8 Atomic Electronic Configurations and Periodicity Chapter 8 Electron Configurations Page 1 Chapter 8 Atomic Electronic Configurations and Periodicity 8-1. Substances that are weakly attracted to a magnetic field but lose their magnetism when removed from

More information

All answers must use the correct number of significant figures, and must show units!

All answers must use the correct number of significant figures, and must show units! CHEM 10113, Quiz 2 September 7, 2011 Name (please print) All answers must use the correct number of significant figures, and must show units! IA Periodic Table of the Elements VIIIA (1) (18) 1 2 1 H IIA

More information

Periodic Table & Atomic Structure

Periodic Table & Atomic Structure St Peter the Apostle High School Chemistry Department Periodic Table & Atomic Structure N4 & N5 Homework Questions Answer questions as directed by your teacher. National 4 level questions are first followed

More information

Review Topic 3: Elements, Radioactivity, and the Periodic Table

Review Topic 3: Elements, Radioactivity, and the Periodic Table Name: Score: 19 / 19 points (100%) Review Topic 3: Elements, Radioactivity, and the Periodic Table Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The

More information

Atom nucleus (protons and neutrons) electron cloud (electrons)

Atom nucleus (protons and neutrons) electron cloud (electrons) Atom nucleus (protons and neutrons) electron cloud (electrons) Atomic Number equal to the number of protons Mass Number protons + neutrons Charge when # of electrons # of protons Negatively Charged Ion

More information

Name PRE-TEST. Directions: Circle the letter indicating whether the following statements are either true ("T") or false ("F").

Name PRE-TEST. Directions: Circle the letter indicating whether the following statements are either true (T) or false (F). 1 PRETEST Directions: Circle the letter indicating whether the following statements are either true ("T") or false ("F"). T F 1. Chemical elements with similar chemical properties are referred to as a

More information

Instructions and Sequence for Using the Atom Board

Instructions and Sequence for Using the Atom Board Instructions and Sequence for Using the Atom Board Bohr s atomic model is a representation of protons, neutrons, and electrons and their relationships within an atom. Because these particles are so small

More information

1) is credited with developing the concept of atomic numbers.

1) is credited with developing the concept of atomic numbers. Chemistry Chapter 14 Review Name answer key General Concept Questions 1) is credited with developing the concept of atomic numbers. A) Dmitri Mendeleev B) Lothar Meyer C) Henry Moseley D) Ernest Rutherford

More information

ELECTRONIC CONFIGURATIONS

ELECTRONIC CONFIGURATIONS ELECTRONIC CONFIGURATIONS ELECTRONIC CONFIGURATIONS CONTENTS The Bohr Atom Levels and sub-levels Rules and principles Orbitals Rules for filling orbitals. The Aufbau principle Electronic configurations

More information

ZAHID IQBAL WARRAICH

ZAHID IQBAL WARRAICH Section A Q1 The first six ionisation energies of four elements, A to D, are given. Which element is most likely to be in Group IV of the Periodic Table? Q2 In which species are the numbers of electrons

More information

ICI. The periodic table Notes for teachers

ICI. The periodic table Notes for teachers Ages 11-14 and 14-16 Notes for teachers Contents The interactive periodic table is an extensive database of element properties. The data is displayed instantaneously as you roll over each element. Besides

More information

Families and Periods of the Periodic Table

Families and Periods of the Periodic Table Families and Periods of the Periodic Table CK12 Editor Say Thanks to the Authors Click http://www.ck12.org/saythanks (No sign in required) To access a customizable version of this book, as well as other

More information

Unit 6 Particles with Internal Structure 3-1

Unit 6 Particles with Internal Structure 3-1 Unit 6 Particles with Internal Structure 3-1 The Elements Remember, elements are combined to form molecules the way letters are combined to form words. Presently there are about 115 known elements. Only

More information