Unit 2: Atomic Theory Practice Packet

Size: px
Start display at page:

Download "Unit 2: Atomic Theory Practice Packet"

Transcription

1 Unit 2: Atomic Theory Practice Packet 1

2 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 atoms of a given element are identical in mass and properties Rutherford N/A Electrons travel around the nucleus in welldefined paths called orbits (like planets in a solar system) Thomson N/A Electrons have distinct amounts of energy and move in areas called orbitals Developed after the famous discovery that energy can behave as both waves & particles 2

3 3

4 4

5 Atomic Structure Worksheet **Assume all are neutral atoms! Fill in the blanks in the following worksheet. Please keep in mind that the isotope represented by each space may NOT be the most common isotope or the one closest in atomic mass to the value on the periodic table. Atomic Atomic Protons Neutrons Electrons Mass symbol number number C W 183 Cr Md 259 Se Notice there are two different atoms of zirconium (Zr) listed. They have drastically different mass numbers. What are these two therefore considered to be in relation to one another? 5

6 Atomic Theory- Neutral Atoms and their subatomic parts How many protons, neutrons, and electrons are present in the following neutral atoms? vanadium potassium nitrogen platinum argon helium What is the name of the element that has neutral atoms that contain: 5 protons? 16 electrons? 17 protons? 32 electrons? 25 protons? 1 electron? 82 protons? 8 electrons? 92 protons? 2 electrons? 6

7 Complete the following chart: (assume the overall charge on all atoms = 0.except the last one!) Element Symbol Atomic Number # of Protons # of Neutrons Hydrogen 1 Mass Number (amu) # of Electrons He 4 Na 12 Potassium Rb 86 Carbon 6 Xenon At Copper 64 Ne Lithium Ion Li + 3 7

8 P, n, e of ions Write the full chemical symbol for the ion with: 1) 12 protons and 10 electrons: 2) 74 protons and 68 electrons: 3) 95 protons and 89 electrons: 4) 33 protons and 36 electrons: Determine the number of p, n, e for the following ions: Cu 2+ Li + O 2- p = n = e = Cl - Al 3+ I 7+ # protons # electrons # neutrons Atomic # Mass # Lithium Phosphorus Vanadium Krypton Barium Uranium

9 ATOM or ION? PROTONS NEUTRONS ELECTRONS MASS NUMBER NUCLEAR CHARGE Al Cl 23 Na +1 He 15 O C C Au +3 U 222 Rn Cu +1 Cu +2 Question: Which of the above atoms are isotopes of one another? Explain how you know this. 9

10 For the following atoms/ions determine the number of protons, neutrons, electrons, mass number, and nuclear charge. ATOM or ION? PROTONS NEUTRONS ELECTRONS MASS NUMBER NUCLEAR CHARGE 15 N Cu +2 8 B O F Pb 208 Pb Ag +1 Zn +2 Mg S -2 Question: Which of the above atoms are isotopes of one another? Explain how you know this. 10

11 Calculate the atomic mass of each of the following isotopes. SHOW ALL WORK. Element Mass Percent Abundance 1) copper amu 69.17% copper amu 30.83% 2) uranium amu 0.72% uranium amu 99.28% 3) hydrogen amu % hydrogen amu 0.015% 4) element Q-8 8 amu 10.0% element Q-9 9 amu 20.0% element Q amu 70.0% 11

12 Weighted Averages HW (SHOW ALL WORK!) Name *You can round the masses given to you or use them as given just be consistent! 1) Element X exists in three isotopic forms. The isotopic mixture consists of 10.0% 10 X, 20.0% 11 X, and 70.0% 12 X. What is the average atomic mass of this element? 2) Element Y exists in three isotopic forms. The Isotopic mixture consists of 15.0% 21 X, 65.0% 22 X, and 20.0% 23 X. That is the average atomic mass of this element? 3) A mystery element occurs in nature as two isotopes. Isotope A has a mass of amu and its abundance is 19.9%; Isotope B has a mass of amu and its abundance is 80.1%. From this data, calculate the atomic mass of the element and show all work. Lastly, identify the element. 4) A mystery element occurs in nature as two isotopes. Isotope A has a mass of amu and its abundance is 69.17%; Isotope B has a mass of amu and its abundance is 30.83%. From this data, calculate the atomic mass of the element and show all work. Lastly, identify the element. 12

13 5) A mystery element occurs in nature as three isotopes. Isotope A has a mass of amu and its abundance is %; Isotope B has a mass of amu and its abundance is %; Isotope C has a mass of amu and its abundance is %. From this data, calculate the atomic mass of the element and show all work. Lastly, identify the element. Isotopes and Average Atomic Mass Example: A sample of cesium is 75% 133 Cs, 20% 132 Cs, and 5% 134 Cs. What is the average atomic mass? Determine the average atomic mass of the following mixtures of isotopes % 127 I, 17% 126 I, 3% 128 I 2. 50% 197 Au, 50% 198 Au 13

14 3. 15% 55 Fe, 85% 56 Fe 4. 99% 1 H, 0.8% 2 H, 0.2% 3 H 5. 95% 14 N, 3% 15 N, 2% 16 N 6. 98% 12 C, 2% 14 C 14

15 Regents Chemistry Name Principal Energy Level Worksheet Carbon Helium Neon Oxygen Sulfur 3s 3p 3d Aluminum 3s 3p 3d Sodium 3s 3p 3d Lithium 15

16 Calcium 3s 3p 3d 4s 4p 4d 4f Fluorine Chlorine 3s 3p 3d Hydrogen Magnesium 3s 3p 3d Tin 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f Potassium 3s 3p 3d 4s 4p 4d 4f 16

17 Construct Bohr diagrams for the following: Na electron configuration F electron configuration O electron configuration Li + electron configuration Cl - electron configuration Ne electron configuration 17

18 Draw Lewis Dot Diagrams for the following: Charge # Valence e - N Charge # Valence e - C # unpaired valence e - # of bonds # unpaired valence e - # of bonds Charge # Valence e - Li + Charge # Valence e - He # unpaired valence e - # of bonds # unpaired valence e - # of bonds Charge # Valence e - O Charge # Valence e - B # unpaired valence e - # of bonds # unpaired valence e - # of bonds Charge # Valence e - S Charge # Valence e - Kr # unpaired valence e - # of bonds # unpaired valence e - # of bonds Charge # Valence e - Se 2- Charge # Valence e - Ca +2 # unpaired valence e - # of bonds # unpaired valence e - # of bonds 18

19 Bohr and Lewis Dot Diagrams Name Element Carbon Electron Configuration Bohr Diagram # Valence e - Lewis Dot # Kernel e - Diagram Valence e - = p = n = e = Kernel e - = Oxygen Valence e - = p = n = e = Kernel e - = Sodium p = n = e = Valence e - = Kernel e - = Neon Valence e - = p = n = e = Kernel e - = 19

20 Element Fluorine Electron Configuration Bohr Diagram # Valence e - Lewis Dot # Kernel e - Diagram Valence e - = p = n = e = Kernel e - = Argon Valence e - = p = n = e = Kernel e - = Nitrogen p = n = e = Valence e - = Kernel e - = Lead Valence e - = p = n = e = Kernel e - = 20

21 Regents Chemistry Electron Configuration Worksheet Name Period For the questions 1-10, assume all atoms are neutral. Use the electron configurations to determine the identity of the element and whether it is in the ground or excited state. Electron Configuration Identity Ground/Excited Give an electron configuration for the following: 11. Sulfur in its ground state. 12. Helium in an excited state. 13. Give the ground state electron configuration for calcium. 14. Give the correct electron configuration for the Ca +2 ion. 15. How many valence electrons are there in atom of bromine? 16. How many valence electrons are there in a Cl - ion? 17. How many kernel electrons are there in a phosphorus atom? 18. How many valence electrons are there in a neon atom? 19. How many principal energy levels are there in a iron atom? 21

22 20. When atoms of an element are emitting a certain wavelength (or color) of light, it means that a) the atoms have gained energy and electrons have jumped to an excited state. b) the atoms have gained energy and electrons have fallen back to the ground state. c) the atoms have lost energy and electrons have fallen back to the ground state. d) the atoms have lost energy and electrons have jumped to an excited state. Use the emissions spectra results below to answer questions 14 and 15: Gas A Gas B Gas C Gas D Unknown Gas 21. According to these experimental spectra results, the unknown gas is a mixture of which gases? 22. Each line on the visible light spectrum for the gases above represents a) electrons jumping to the same excited state or energy level. b) electrons falling back down to their ground state from the same energy level. c) electrons jumping to multiple excited states or energy levels. d) electrons falling back down to their ground state from multiple energy levels. 23. How do the energy and the most probable location of an electron in the third shell of an atom compare to the energy and the most probable location of an electron in the first shell of the same atom? a) In the third shell, an electron has more energy and is closer to the nucleus. b) In the third shell, an electron has more energy and is farther from the nucleus. c) In the third shell, an electron has less energy and is closer to the nucleus. d) In the third shell, an electron has less energy and is farther from the nucleus. 22

23 24. An atom of oxygen is in an excited state. When an electron in this atom moves from the third shell to the second shell, energy is a) emitted by the nucleus b) absorbed by the nucleus c) emitted by the electron d) absorbed by the electron 25. Which electron configuration could represent a strontium atom in an excited state? a) b) c) d) Imagine an emission spectrum produced by a container of hydrogen gas. Changing the amount of hydrogen in the container will change the colors of the lines in the spectrum. a) True b) False 27. In the previous question, changing the gas in the container from hydrogen to helium will change the colors of the lines occurring in the spectrum. a) True b) False 28. An absorption spectrum appears as a continuous spectrum interrupted by a series of dark lines. a) True b) False 29. Emission spectra are characterized by narrow bright lines of different colors. a) True b) False 23

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

Mr. Dolgos Regents Chemistry NOTE PACKET. Unit 2: Atomic Theory

Mr. Dolgos Regents Chemistry NOTE PACKET. Unit 2: Atomic Theory *STUDENT* *STUDENT* Mr. Dolgos Regents Chemistry NOTE PACKET Unit 2: Atomic Theory 1 *STUDENT* UNIT 2 - ATOMIC THEORY *STUDENT* VOCABULARY: Allotrope Anion Atom Atomic Mass Atomic Mass unit (a.m.u.) Atomic

More information

5. Isotopes of an element must have different (1) Atomic numbers (2) Mass numbers (3) Numbers of protons (4) Numbers of electrons

5. Isotopes of an element must have different (1) Atomic numbers (2) Mass numbers (3) Numbers of protons (4) Numbers of electrons Name: Work hard. Be nice. Period: Date: Hybrid Chemistry Regents Prep Ms. Hart/Mr. Kuhnau UNIT 1: All about Atoms Lesson 1.3: Electrons! By the end of today, you will have an answer to: What is electron

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

Answers and Solutions to Text Problems

Answers and Solutions to Text Problems 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

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

UNIT 2 - ATOMIC THEORY

UNIT 2 - ATOMIC THEORY UNIT 2 - ATOMIC THEORY VOCABULARY: Allotrope Anion Atom Atomic Mass Atomic Mass unit (a.m.u.) Atomic number Bohr model Cation Compound Electron Electron Configuration Element Excited state Ground state

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

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

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

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

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

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

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

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

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

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

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

CHM1 Exam 4 Review. Topics. 1. Structure of the atom a. Proton nucleus + 1 amu b. Neutron nucleus 0 1 amu c. Electron orbits - 0 amu 2.

CHM1 Exam 4 Review. Topics. 1. Structure of the atom a. Proton nucleus + 1 amu b. Neutron nucleus 0 1 amu c. Electron orbits - 0 amu 2. Topics 1. Structure of the atom a. Proton nucleus + 1 amu b. Neutron nucleus 0 1 amu c. Electron orbits - 0 amu 2. Atomic symbols Mass number (protons + neutrons) 4+ charge 126C atomic number (# protons)

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

The Material World: An Introduction to Chemistry. The Nucleus of an Atom

The Material World: An Introduction to Chemistry. The Nucleus of an Atom 1. MODERN MODEL OF THE ATOM A. A Closer Look at the Nucleus Since Bohr, the model of the atom has become even more sophisticated. Scientists had to explain why even the thin lines in an emission spectrum

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

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

Test 2: Atomic Structure Review

Test 2: Atomic Structure Review Name: Monday, October 15, 2007 Test 2: Atomic Structure Review 1. Figure 1 The diagram shows the characteristic spectral line patterns of four elements. Also shown are spectral lines produced by an unknown

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 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

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

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

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

9/13/2013. However, Dalton thought that an atom was just a tiny sphere with no internal parts. This is sometimes referred to as the cannonball model.

9/13/2013. However, Dalton thought that an atom was just a tiny sphere with no internal parts. This is sometimes referred to as the cannonball model. John Dalton was an English scientist who lived in the early 1800s. Dalton s atomic theory served as a model for how matter worked. The principles of Dalton s atomic theory are: 1. Elements are made of

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

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

Knockout Review Questions

Knockout Review Questions Name: ate:. ll of the atoms of argon have the same 6. The nucleus is the part of the atom that. mass number. atomic number. number of neutrons. number of nucleons. consist mostly of empty space. has a

More information

Part I: Protons, Electrons, and Neutrons

Part I: Protons, Electrons, and Neutrons Part I: Protons, Electrons, and Neutrons 1. Neutral Atom of Hydrogen 1p + Atomic Number = 1 Atomic Mass = 1 (rounded) Number of protons = 1 Number of neutrons = 0 Number of electrons = 1 Number of Energy

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

LEARNING OBJECTIVES/ASSESSMENT

LEARNING OBJECTIVES/ASSESSMENT Chapter 3: Electronic Structure and the Periodic Law CHAPTER OUTLINE 3.1 The Periodic Law and Table 3.2 Electronic Arrangements in Atoms 3.3 The Shell Model and Chemical Properties 3.4 Electronic Configurations

More information

Unit 5: Electrons-lecture Regents Chemistry Mr. Murdoch. Unit 5: Electrons. Student Name: Class Period: Page 1 of 61. Website upload 2014

Unit 5: Electrons-lecture Regents Chemistry Mr. Murdoch. Unit 5: Electrons. Student Name: Class Period: Page 1 of 61. Website upload 2014 Unit 5: Electrons Student Name: Class Period: Page 1 of 61 Page intentionally blank Page 2 of 61 Unit 5 Vocabulary: 1. Anion: a negatively charged ion. 2. Cation: A positively charged ion. 3. Electron:

More information

Name: Worksheet: Electron Configurations. I Heart Chemistry!

Name: Worksheet: Electron Configurations. I Heart Chemistry! 1. Which electron configuration represents an atom in an excited state? 1s 2 2s 2 2p 6 3p 1 1s 2 2s 2 2p 6 3s 2 3p 2 1s 2 2s 2 2p 6 3s 2 3p 1 1s 2 2s 2 2p 6 3s 2 Worksheet: Electron Configurations Name:

More information

Review - Atomic Structure

Review - Atomic Structure Name: Tuesday, June 03, 2008 Review - Atomic Structure 1. The number of neutrons in the nucleus of an atom can be determined by 1. adding the atomic number to the mass number 3. adding the mass number

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

CHEMISTRY PERIODIC TABLE WORKSHEET

CHEMISTRY PERIODIC TABLE WORKSHEET Periodic Table Questions [Place your answer in the blank to the left of the question number.] 1. The elements characterized as nonmetals are located in the periodic table at the (A) far left; (B) bottom;

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

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

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

Chemistry: Atomic Structure

Chemistry: Atomic Structure Chemistry: Atomic Structure Organization of the Modern Periodic Table The periodic table is organized by properties. The Atom Today atom = All atoms of the same element are essentially (but not exactly)

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 Structure of an Atom

The Structure of an Atom CP Biology 2016 Name KEY UNIT 2A: Basic Chemistry Chapter 2: The Chemistry of Life 2.1 The Nature of Matter The Structure of an Atom Living things share a major fundamental similarity with nonliving matter.

More information

3. An orbital is a region of space where there is a high probability of finding a. a proton b. a neutron c. a positron d.

3. An orbital is a region of space where there is a high probability of finding a. a proton b. a neutron c. a positron d. Name Bell Atom Unit Exam Multiple Choice 1. Which statement best describes electrons? a. They are positive subatomic particles and are found in the nucleus. b. They are positive subatomic particles and

More information

Worksheets for High School Chemistry

Worksheets for High School Chemistry Surviving Chemistry One Concept at a Time Atomic Structure Organized and Engaging Worksheets for High School Chemistry Atomic Structure Worksheets One Concept at a Time Worksheets for High School Chemistry

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

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

Protons, Neutrons, and Electrons How Atoms Differ

Protons, Neutrons, and Electrons How Atoms Differ 7 th Grade Science Isotopes and ions UNIT 1 LESSON 11 Name Date: Do Now Protons, Neutrons, and Electrons How Atoms Differ Directions: Complete the chart with the correct terms from the word bank in the

More information

Topic 2 National Chemistry Summary Notes. Atomic Structure

Topic 2 National Chemistry Summary Notes. Atomic Structure Topic 2 National Chemistry Summary Notes Atomic Structure LI 1 Classifying Elements Chemists have classified elements, i.e. put elements into different sets, by arranging them in The Periodic Table. Some

More information

Atomic Concepts Review

Atomic Concepts Review 1. Which phrase describes an atom? A) a negatively charged nucleus surrounded by positively charged protons B) a negatively charged nucleus surrounded by positively charged electrons C) a positively charged

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

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

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

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

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

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

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

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

Surviving Chemistry. One Concept at a Time. Engaging and Easy-to-learn Guided Study of High School Chemistry

Surviving Chemistry. One Concept at a Time. Engaging and Easy-to-learn Guided Study of High School Chemistry Surviving Chemistry One Concept at a Time Atomic Structure Engaging and Easy-to-learn Guided Study of High School Chemistry Guided Study Book. One Concept at a Time A Guided Study and Workbook for High

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

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

Atomic Theory and Bonding

Atomic Theory and Bonding Atomic Theory and Bonding Textbook pages 168 183 Section 4.1 Summary Before You Read What do you already know about Bohr diagrams? Record your answer in the lines below. What are atoms? An atom is the

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

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

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

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

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

The Atomic Number (Z) is equal to the number of protons in the nucleus of an atom and is unique to all elements whether they are ionized or not.

The Atomic Number (Z) is equal to the number of protons in the nucleus of an atom and is unique to all elements whether they are ionized or not. Chemistry Notes: Atomic Theory 2.1.1: Positions of Subatomic Particles Protons and neutrons are found in the nucleus of an atom, and electrons are found in the electron cloud (a general area in which there

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

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

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

PSI AP Chemistry Unit 1: The Atom Free Response CW/HW

PSI AP Chemistry Unit 1: The Atom Free Response CW/HW PSI AP Chemistry Unit 1: The Atom Free Response CW/HW Name Laws of Multiple and Definite Proportions and Conservation of Mass Classwork: 1. Exactly twice as much oxygen is required to react with 1 gram

More information

Name: Date: Period: Page: Average Atomic Mass Practice Answer Key. The Mass Spectrum of Zirconium

Name: Date: Period: Page: Average Atomic Mass Practice Answer Key. The Mass Spectrum of Zirconium Name: Date: Period: Page: Part I. Average Atomic Mass of Zirconium Average Atomic Mass Practice Answer Key A device known as a mass spectrometer can be used to determine the relative abundance of the isotopes

More information

Evidence in support of the atomic theory did not come until almost 2000 years later. 1770 Lavoisier

Evidence in support of the atomic theory did not come until almost 2000 years later. 1770 Lavoisier JT ATOMIC STRUCTURE - TIME LINE B.C. - Ancient Greeks: Democritus and Leucippus Vs. Continuous theory of Matter Evidence in support of the atomic theory did not come until almost 2000 years later. 1770

More information

Atomic Theory. Unit 3 Development of the Atomic Theory. H. Cannon, C. Clapper and T. Guillot Klein High School

Atomic Theory. Unit 3 Development of the Atomic Theory. H. Cannon, C. Clapper and T. Guillot Klein High School Atomic Theory Unit 3 Development of the Atomic Theory 1. Where is the mass of the atom concentrated? In the nucleus 2. What is located in the nucleus? Neutrons and protons 3. What is the negative particle

More information

The Atom and the Periodic Table

The Atom and the Periodic Table The Atom and the Periodic Table Atoms http://library.thinkquest.org/12659/media/solar_system/sun/sun.jpg Everything in the Universe is made of stuff (also known as matter). The building blocks are the

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

Chapter 5 TEST: The Periodic Table name

Chapter 5 TEST: The Periodic Table name Chapter 5 TEST: The Periodic Table name HPS # date: Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The order of elements in the periodic table is based

More information

Chapter 3 Atoms & the. Chapter 3 Section 2 The Simplest Matter Pages 80-85

Chapter 3 Atoms & the. Chapter 3 Section 2 The Simplest Matter Pages 80-85 Chapter 3 Atoms & the Periodic Table Chapter 3 Section 2 The Simplest Matter Pages 80-85 The Elements There are many different types of atoms. An element is matter made up of only one kind of atom. An

More information

1 Electrons and Chemical Bonding

1 Electrons and Chemical Bonding CHAPTER 1 1 Electrons and Chemical Bonding SECTION Chemical Bonding BEFORE YOU READ After you read this section, you should be able to answer these questions: What is chemical bonding? What are 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

Chapter 2 Atoms, Molecules, and Ions

Chapter 2 Atoms, Molecules, and Ions Chapter 2 Atoms, Molecules, and Ions 1 Self study: The history of the development of atomic theory. 9 th Ed: pp. 36-41 or 10 th Ed: pp. 38-42. 2 The Atomic Theory of Matter John Dalton (1766-1844), began

More information

2.5 The Modern View of Atomic Structure: An Introduction

2.5 The Modern View of Atomic Structure: An Introduction 2.5 The Modern View of Atomic Structure: An Introduction Figure 2.13 a & b (a) Expected Results of the Metal Foil Experiment if Thomson's Model Were Correct (b) Actual Results Copyright Houghton Mifflin

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

PSI AP Chemistry Unit 1 MC Homework. Laws of Multiple and Definite Proportions and Conservation of Mass

PSI AP Chemistry Unit 1 MC Homework. Laws of Multiple and Definite Proportions and Conservation of Mass PSI AP Chemistry Unit 1 MC Homework Name Laws of Multiple and Definite Proportions and Conservation of Mass 1. Dalton's atomic theory explained the observation that the percentage by mass of the elements

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

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

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

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

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

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

Chapter 5 Electronic Structure and Periodic Trends

Chapter 5 Electronic Structure and Periodic Trends Chapter 5 Electronic Structure and Periodic Trends 5.3 Sublevels and Orbitals A p sublevel consists of three p orbitals. 1 Basic Chemistry Copyright 2011 Pearson Education, Inc. Energy Levels Energy levels

More information

Atoms and Ions (adapted from Chemistry A Guided Inquiry, Moog, R. S. and Farrell, J. J.)

Atoms and Ions (adapted from Chemistry A Guided Inquiry, Moog, R. S. and Farrell, J. J.) Atoms and Ions (adapted from Chemistry A Guided Inquiry, Moog, R. S. and Farrell, J. J.) There are 118 different elements currently on the periodic table. With the exception of technetium, all the elements

More information

CHEM 1411 Chapter 5 Homework Answers

CHEM 1411 Chapter 5 Homework Answers 1 CHEM 1411 Chapter 5 Homework Answers 1. Which statement regarding the gold foil experiment is false? (a) It was performed by Rutherford and his research group early in the 20 th century. (b) Most of

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