Electron Configurations, Isoelectronic Elements, & Ionization Reactions. Chemistry 11

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Electron Configurations, Isoelectronic Elements, & Ionization Reactions. Chemistry 11"

Transcription

1 Electron Configurations, Isoelectronic Elements, & Ionization Reactions Chemistry 11

2 Note: Of the 3 subatomic particles, the electron plays the greatest role in determining the physical and chemical properties of an element. There is a relationship between the electron configuration of elements and their arrangement in the table.

3 Elements are Classified into 4 Categories: Noble Gases are elements in which the outermost s and p sublevels are filled. They are also called inert gases because they do not participate in many chemical reactions. Argon (Ar)) 1s 2 2s 2 2p 6 3s 2 3p 6 Neon (Ne) 1s 2 2s 2 2p 6

4 Representative Elements Also known as Main Group Elements Are elements whose outermost s or p sublevels are only partially filled. Sodium (Na) 1s 2 2s 2 2p 6 3s 1 Silicon (Si) 1s 2 2s 2 2p 6 3s 2 3p 2

5 Inner Transition Metals The Actinides & Lanthanides Are elements whose outermost s sublevel and the nearby f sublevel generally contain electrons. Gadolinium (Gd( Gd) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 8

6 Transition Elements Are elements whose outermost s sublevel and nearby d sublevel contain electrons. Iron (Fe) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 6

7 Transition Metals Do not form ions with noble gas configurations If they did, they would have to lose 4 or more electrons, and the energy needed to do this would be too high. These metals do form cations ( + charged ion) with more than one charge (multi-valent valent) Electrons are first moved from the outer s and then inner d sublevels.

8 Example 1: 25 Mn Mn 2+ Mn ( 18 Ar)4s 2 3d 5 2+ loses 2 electrons from the s sublevel Mn ( Ar)4s 0 3d 5

9 Example 2: 26 Fe Fe 2+ Fe ( 18 Ar)4s 2 3d 6 2+ loses 2 electrons from the s sublevel Fe 2+ Fe ( ( Ar)4s 0 3d 6 18 Ar)4s 0 3d 5

10 Valence Electrons Are the electrons in the highest occupied energy level of an element s s atom. Are usually the only electrons used in the formation of chemical bonds.

11 Valence Electrons Note: Many of the similar chemical properties of elements in the same group (vertical column) are related to the Σ number of s and p electrons in the highest occupied energy level. These electrons are valence electrons.

12 Example 1: Sodium 11 Na 1s 2 2s 2 2p 6 3s 1 Highest energy level = 3 Single s electron No p electrons for this element Na has 1 valence electron

13 Example 2: Phosphorus 15 P 1s 2 2s 2 2p 6 3s 2 3p 3 Highest energy level = 3 Two s electrons Three p electrons 5 valence electrons

14 Example 3: Potassium 19 K Electron Configurations 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1 Highest energy level = 4 1 valence electron

15 Example 4: Carbon 6 C Electron Configuration 1s 2 2s 2 2p 2 Highest energy level = 2 4 valence electrons

16 12 Mg Example 5: Magnesium Electron Configuration 1s 2 2s 2 2p 6 3s 2 Highest energy level = 3 2 valence electrons

17 Example 6: Oxygen 8 O Electron Configuration 1s 2 2s 2 2p 4 Highest energy level = 2 6 valence electrons

18 Answers 1. On the sketch of the Periodic Table, label: a) the periods b) the group numbers c) colour the s block elements (red) d) colour the p block elements (blue) e) colour the d block elements (green) f) colour the f block elements (yellow)

19

20 Question 2 Read the following electron configurations to determine the identities of the following elements: a) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3 d10 4p 6 5s 2 b) 1s 2 2s 2 2p 6 3s 2 3p 3 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 4f 5d 10 6p 6 d) 1s 2 2s 2 2p 2 e) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 5

21 Question 3 Write ionization reactions for the following elements: a) N is a non-metal, so it will gain electrons. It needs 3 more electrons to become as stable as a Noble Gas, so it will gain three electrons. Show gained electrons on the left-hand side of the arrow.

22 Question 3 b) Sc is a metal, so it will lose electrons. It needs to lose 3 electrons to become as stable as a Noble Gas. Show lost electrons on the right-hand side of the arrow.

23 Question 3 c) P is a non-metal, so it will gain electrons. It needs 3 more electrons to become as stable as a Noble Gas, so it will gain three electrons. Show gained electrons on the left-hand side of the arrow.

24 Question 3 d) Rb is a metal, so it will lose electrons. It needs to lose 1 electron to become as stable as a Noble Gas. Show the lost electron on the right-hand side of the arrow.

25 Question 3 e) Se is a non-metal, so it will gain electrons. It needs 2 more electrons to become as stable as a Noble Gas, so it will gain two electrons. Show gained electrons on the left-hand side of the arrow.

26 Question 4 Explain what is meant by the term isoelectronic. Answer: The prefix iso means the same, so isoelectronic means that two atoms or ions have the same number of electrons or the same electron configuration.

27 Question 5 What are four ions, with their charges, that are isoelectronic with each of the following: a) neon: N 3 O 2 F 1 Na 1+ Mg 2+ Al 3+ b) argon: P 3 S 2 Cl 1 K 1+ Ca 2+ Sc 3+ c) krypton: As 3 Se 2 Br 1 Rb 1+ Sr 2+ Y 3+ d) an S 2 ion: P 3 Cl 1 K 1+ Ca 2+ Sc 3+

28 Question 6 A calcium ion, Ca2+, is isoelectronic with argon.does this mean that calcium has turned into argon? Explain. Answer: No, calcium has not turned into Argon. Remember, it is the atomic number (number of protons) that determines what type of element an atom is. The calcium ion has the same number of electrons as an Argon atom. This just means that they are Both stable octet with 18 electrons.

29 Question 7 Write the electron configuration for the element with atomic number 117. In which chemical group does it belong? Predict the charge on the ion that it will form.

30 Question 7 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 14 5d 10 6p 6 7s 2 5f 14 6d 10 7p 5 This element belongs to the Halogen family or Group 17 (VIIB). It will gain one electron to have the same configuration as a Noble Gas, so it will form ions with a charge of 1-.

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

CHAPTER 6: THE PERIODIC TABLE

CHAPTER 6: THE PERIODIC TABLE CHAPTER 6: THE PERIODIC TABLE Problems to try in the textbook. Answers in Appendix I: 5,9,13,15,17,19,21,25,27,29,31,33,35,41,43,45,47,49,55abcde,57,59,61,63,65,67,69,71,73,75,89,91 6.1 CLASSIFICATION

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

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

Review- The Periodic Table

Review- The Periodic Table Review- The Periodic Table Name Date Block Matching: Match the description in with the correct term in. Write the letter in the blank provided. Each term matches with only one description, so be sure to

More information

A. Wanted to organize elements according to their. B. When elements were arranged in order of increasing atomic mass*, similarities in

A. Wanted to organize elements according to their. B. When elements were arranged in order of increasing atomic mass*, similarities in Chemistry Unit 5- Periodic Table and Periodic Law Name: History of the Periodic Table I. Mendeleev and Chemical Periodicity A. Wanted to organize elements according to their B. When elements were arranged

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

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

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

Name Date Class THE PERIODIC TABLE. SECTION 6.1 ORGANIZING THE ELEMENTS (pages )

Name Date Class THE PERIODIC TABLE. SECTION 6.1 ORGANIZING THE ELEMENTS (pages ) 6 THE PERIODIC TABLE SECTION 6.1 ORGANIZING THE ELEMENTS (pages 155 160) This section describes the development of the periodic table and explains the periodic law. It also describes the classification

More information

5.4 Trends in the Periodic Table

5.4 Trends in the Periodic Table 5.4 Trends in the Periodic Table Think about all the things that change over time or in a predictable way. For example, the size of the computer has continually decreased over time. You may become more

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

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

Chemistry 105 Atoms, Ions and an Introduction to Lewis Dot Structures

Chemistry 105 Atoms, Ions and an Introduction to Lewis Dot Structures hemistry 105 Atoms, Ions and an Introduction to Lewis Dot Structures Valence Electrons Valence electrons are located in the valence or outer energy shell these are sometimes referred to as the outer electrons

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

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

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

Worksheet 11 - Periodic Trends

Worksheet 11 - Periodic Trends Worksheet 11 - Periodic Trends A number of physical and chemical properties of elements can be predicted from their position in the Periodic Table. Among these properties are Ionization Energy, Electron

More information

Copyrighted by Gabriel Tang B.Ed., B.Sc.

Copyrighted by Gabriel Tang B.Ed., B.Sc. Chapter 8: The Periodic Table 8.1: Development of the Periodic Table Johann Dobereiner: - first to discover a pattern of a group of elements like Cl, Br, and I (called triads). John Newland: - suggested

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

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

Question Bank Periodic Table and Periodic Properties

Question Bank Periodic Table and Periodic Properties Question Bank Periodic Table and Periodic Properties 1. Name the following with reference to the elements of Modern Periodic Table. (1 26) (a) An alkali metal in period 2. Ans. Lithium (b) A halogen in

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

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

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 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

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

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

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

Unit 5 Elements and their Properties

Unit 5 Elements and their Properties Unit 5 Elements and their Properties 1. In 1871, Russian chemist Mendeleev created the forerunner of the modern periodic table. 2. The elements in Mendeleev's table were arranged in order of increasing

More information

Organizing the Elements

Organizing the Elements The Periodic Table Organizing the Elements A few elements, such as gold and copper, have been known for thousands of years - since ancient times Yet, only about 13 had been identified by the year 1700.

More information

Chapter Test. Teacher Notes and Answers 5 The Periodic Law TEST A 1. b 2. d 3. b 4. b 5. d 6. a 7. b 8. b 9. b 10. a 11. c 12. a.

Chapter Test. Teacher Notes and Answers 5 The Periodic Law TEST A 1. b 2. d 3. b 4. b 5. d 6. a 7. b 8. b 9. b 10. a 11. c 12. a. Assessment Chapter Test A Teacher Notes and Answers 5 The Periodic Law TEST A 1. b 2. d 3. b 4. b 5. d 6. a 7. b 8. b 9. b 10. a 11. c 12. a 13. c 14. d 15. c 16. b 17. d 18. a 19. d 20. c 21. d 22. a

More information

Chapter 3, Elements, Atoms, Ions, and the Periodic Table

Chapter 3, Elements, Atoms, Ions, and the Periodic Table 1. Which two scientists in 1869 arranged the elements in order of increasing atomic masses to form a precursor of the modern periodic table of elements? Ans. Mendeleev and Meyer 2. Who stated that the

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

Lewis dot symbols are representations of the elements which give a dot (. ) for each valence electron on the atom.

Lewis dot symbols are representations of the elements which give a dot (. ) for each valence electron on the atom. Worksheet 12 - Chemical Bonding The concept of electron configurations allowed chemists to explain why chemical molecules are formed from the elements. In 1916 the American chemist Gilbert Lewis proposed

More information

Chemical Reactions Packet 2 Bonding-REG.

Chemical Reactions Packet 2 Bonding-REG. Chemical Reactions Packet 2 Bonding-REG. Ms. Rabenda Name: Period: 1 Lewis Dot Diagram Notes Illustrates the number of valence electrons. Valence electrons = Placed around the symbol of the element Helps

More information

Name Class Date ELECTRONS AND THE STRUCTURE OF ATOMS

Name Class Date ELECTRONS AND THE STRUCTURE OF ATOMS Name Class Date The Periodic Table ELECTRONS AND THE STRUCTURE OF ATOMS 6.1 Organizing the Elements Essential Understanding Although Dmitri Mendeleev is often credited as the father of the periodic table,

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

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

Chapter 6 The Periodic Table

Chapter 6 The Periodic Table Chapter 6 The Periodic Table Organizing the Periodic Table In a grocery store, the products are grouped according to similar characteristics. With a logical classification system, finding and comparing

More information

Chapter 7 Periodic Properties of the Elements

Chapter 7 Periodic Properties of the Elements Chapter 7 Periodic Properties of the Elements 1. Elements in the modern version of the periodic table are arranged in order of increasing. (a). oxidation number (b). atomic mass (c). average atomic mass

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

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

EXPERIMENT 4 The Periodic Table - Atoms and Elements

EXPERIMENT 4 The Periodic Table - Atoms and Elements EXPERIMENT 4 The Periodic Table - Atoms and Elements INTRODUCTION Primary substances, called elements, build all the materials around you. There are more than 109 different elements known today. The elements

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

The Periodic Table of The Elements

The Periodic Table of The Elements The Periodic Table of The Elements Elements are like a collection As more and more elements were discovered it became more important to organize and classify them Between the late 1700 s and mid 1800 s

More information

Key: Periodic Table Blocks. s block p block d block f block

Key: Periodic Table Blocks. s block p block d block f block Name Chemistry / / Periodic Table Today you will learn about the organization of the elements of the periodic table into groups (or families) and periods and the properties of these groups. Groups (or

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

6. Each column of the periodic table is

6. Each column of the periodic table is 1. Atoms of elements that are in the same group have the same number of 5. Mendeleev left gaps in his periodic table because A. Protons B. Valence Electrons A. the table was too full B. no known elements

More information

Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 2 - Cont. 30 January 2014

Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 2 - Cont. 30 January 2014 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 2 - Cont. 30 January 2014 The Structure of the Atom and the Periodic Table Element Information in the

More information

Composition and Structure of the Atom. Protons: Positively charged, high mass particle. Neutrons: Neutral (no) charge, high mass

Composition and Structure of the Atom. Protons: Positively charged, high mass particle. Neutrons: Neutral (no) charge, high mass Composition and Structure of the Atom Atom: basic unit of an element; smallest unit that retains chemical properties of an element Subatomic particles: Small particles that are the building blocks from

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

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

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

Periodicity. The Periodic Table. Dmitri Mendeleev. and the Periodic Table. Periods. Metals vs. Non-Metals. Groups

Periodicity. The Periodic Table. Dmitri Mendeleev. and the Periodic Table. Periods. Metals vs. Non-Metals. Groups Periodicity and the Periodic Table the result Dmitri Mendeleev arranged elements in order of their atomic numbers, such that elements with similar properties fell into the same column or group. The Periodic

More information

Chapter 3. Elements, Atoms, Ions, and the Periodic Table

Chapter 3. Elements, Atoms, Ions, and the Periodic Table Chapter 3. Elements, Atoms, Ions, and the Periodic Table The Periodic Law and the Periodic Table In the early 1800's many elements had been discovered and found to have different properties. In 1817 Döbreiner's

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

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

Lewis Dot Structures of Atoms and Ions

Lewis Dot Structures of Atoms and Ions Why? The chemical properties of an element are based on the number of electrons in the outer shell of its atoms. We use Lewis dot structures to map these valence electrons in order to identify stable electron

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

Periodic Table Trends in Element Properties Ron Robertson

Periodic Table Trends in Element Properties Ron Robertson Periodic Table Trends in Element Properties Ron Robertson r2 n:\files\courses\1110-20\2010 possible slides for web\ch9trans2.doc The Periodic Table Quick Historical Review Mendeleev in 1850 put together

More information

Explain 'Dobereiner's Triads and its drawback.

Explain 'Dobereiner's Triads and its drawback. CLASS: X NCERT (CBSE) Chemistry: For Class 10 Page : 1 Question 1: Explain 'Dobereiner's Triads and its drawback. Dobereiner classified elements into groups of three where the atomic weight of the middle

More information

Chapter 5. Chapter 5. Objectives. Table of Contents. Chapter 5. Chapter 5. Mendeleev and Chemical Periodicity

Chapter 5. Chapter 5. Objectives. Table of Contents. Chapter 5. Chapter 5. Mendeleev and Chemical Periodicity The Periodic Law of Contents and Periodic Properties Objectives Explain the roles of Mendeleev and Moseley in the development of the periodic table. Describe the modern periodic table. Explain how the

More information

An Organized Table Worksheet Due The Periodic Table of Elements. The Periodic Law

An Organized Table Worksheet Due The Periodic Table of Elements. The Periodic Law Name: Date: Period: An Organized Table Worksheet Due The Periodic Table of Elements In 1871, the first periodic table was developed by Dmitrii Mendeleev. Mendeleev is known as the father of the current

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

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 8 Basic Concepts of the Chemical Bonding

Chapter 8 Basic Concepts of the Chemical Bonding Chapter 8 Basic Concepts of the Chemical Bonding 1. There are paired and unpaired electrons in the Lewis symbol for a phosphorus atom. (a). 4, 2 (b). 2, 4 (c). 4, 3 (d). 2, 3 Explanation: Read the question

More information

Chapter 5 Periodic Table. Dmitri Mendeleev: Russian Chemist credited with the discovery of the periodic table.

Chapter 5 Periodic Table. Dmitri Mendeleev: Russian Chemist credited with the discovery of the periodic table. Chapter 5 Periodic Table Dmitri Mendeleev: Russian Chemist credited with the discovery of the periodic table. How did he organize the elements? According to similarities in their chemical and physical

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

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

Electrons In Atoms Mr. O Brien (SFHS) Chapter 5 Standard 1D

Electrons In Atoms Mr. O Brien (SFHS) Chapter 5 Standard 1D Electrons In Atoms Mr. O Brien (SFHS) Chapter 5 Standard 1D Electrons in Atoms (std.1d) What are Bohr Models? planetary model in which the negatively-charged electrons orbit a small, positively-charged

More information

The Periodic Table: Periodic trends

The Periodic Table: Periodic trends Unit 1 The Periodic Table: Periodic trends There are over one hundred different chemical elements. Some of these elements are familiar to you such as hydrogen, oxygen, nitrogen and carbon. Each one has

More information

CLASSIFICATION OF ELEMENTS

CLASSIFICATION OF ELEMENTS Some Basic Concepts & Classification of Elements Test No. 15 Time: 2 Hrs. Total Marks: 311 Date: 07/07/2013 Name Batch: CLASSIFICATION OF ELEMENTS Section A (Objective Question only one correct answer)

More information

EXPERIMENT 4: Electron Configuration of elements

EXPERIMENT 4: Electron Configuration of elements Material: laboratory display of the elements and a wall periodic table is required. Objective: To learn the use of periodic table for writing electron configuration of elements. INTRODUCTION Basic building

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

Part I: Principal Energy Levels and Sublevels

Part I: Principal Energy Levels and Sublevels Part I: Principal Energy Levels and Sublevels As you already know, all atoms are made of subatomic particles, including protons, neutrons, and electrons. Positive protons and neutral neutrons are found

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

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

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

Trends of the Periodic Table Diary

Trends of the Periodic Table Diary Trends of the Periodic Table Diary Trends are patterns of behaviors that atoms on the periodic table of elements follow. Trends hold true most of the time, but there are exceptions, or blips, where the

More information

6.5 Periodic Variations in Element Properties

6.5 Periodic Variations in Element Properties 324 Chapter 6 Electronic Structure and Periodic Properties of Elements 6.5 Periodic Variations in Element Properties By the end of this section, you will be able to: Describe and explain the observed trends

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

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 & Periodic Trends I. Importance of Classification II. History & Development law of octaves III. Periodic Law

Periodic Table & Periodic Trends I. Importance of Classification II. History & Development law of octaves III. Periodic Law Periodic Table & Periodic Trends I. Importance of Classification A. Makes large sums of information manageable. B. In chemistry, it reduces the number of reactions that need to be studied. II. History

More information

Matter, Elements, Compounds, Chemical Bonds and Energy

Matter, Elements, Compounds, Chemical Bonds and Energy Science of Kriyayoga IST 111-01, Spring 2005 Matter, Elements, Compounds, Chemical Bonds and Energy In our discussion so far, we have discussed human nervous system and cell biology, in addition to the

More information

Scholars Chemistry Summer Assignment

Scholars Chemistry Summer Assignment Scholars Chemistry Summer Assignment Welcome to Chemistry! In an effort to assist you towards preparing for your chemistry class, please introduce yourself to the following concepts. The assignments were

More information

Chemistry 104 Chapter Three PowerPoint Notes

Chemistry 104 Chapter Three PowerPoint Notes Atomic Structure and the Periodic Table Chapter 3 Chemistry 104 Professor Michael Russell Atomic Theory Chemistry founded on four fundamental assumptions about atoms and matter which make up the modern

More information

Mendeleev s s Table. Periodic Table Revisited. The Modern Periodic Table. Section 14.1 Classification of the Elements. Chapter 14 Chemical Periodicity

Mendeleev s s Table. Periodic Table Revisited. The Modern Periodic Table. Section 14.1 Classification of the Elements. Chapter 14 Chemical Periodicity Chapter Chemical Periodicity Section. Classification of the Elements OBJECTIVES: Explain why you can infer the properties of an element based on those of other elements in the periodic table. Use electron

More information

Unit 2 Periodic Behavior and Ionic Bonding

Unit 2 Periodic Behavior and Ionic Bonding Unit 2 Periodic Behavior and Ionic Bonding 6.1 Organizing the Elements I. The Periodic Law A. The physical and chemical properties of the elements are periodic functions of their atomic numbers B. Elements

More information

P. Table & E Configuration Practice TEST

P. Table & E Configuration Practice TEST P. Table & E Configuration Practice TEST Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A line spectrum is produced when an electron moves from one energy

More information

Chapter 3 Atomic Structure and Properties

Chapter 3 Atomic Structure and Properties Chapter 3 Atomic Structure and Properties Introduction The nuclear atom and quantum theory are the accepted theories for the atom. In this chapter, we demonstrate their utility by using them to explain

More information

The Periodic Table, Electron Configuration & Chemical Bonding. Lecture 7

The Periodic Table, Electron Configuration & Chemical Bonding. Lecture 7 The Periodic Table, Electron Configuration & Chemical Bonding Lecture 7 Electrons We will start to look at the periodic table by focusing on the information it gives about each element s electrons. How

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

What is an Atom? smallest particle of an element that still has the properties of that element

What is an Atom? smallest particle of an element that still has the properties of that element Date: Science 10 4.1 Atomic Theory & Bonding What is an Atom? smallest particle of an element that still has the properties of that element An atom = proton(s) + electron(s) + neutron(s) (PEN) Fun Fact:

More information

Chapter Two Periodic Table

Chapter Two Periodic Table Question (1) Chapter Two Periodic Table Choose the correct answer for each statement of the following:- 1- The elements of same vertical group are identical in the number of----------- a valence electrons

More information

Periodic Table of the Elements

Periodic Table of the Elements Periodic Table of the Elements Where did it come from? 1869 Demitri Mendeleev Russian chemist who discovered a pattern to the elements Wrote properties on cards Arranged cards according to properties

More information

TRENDS IN THE PERIODIC TABLE

TRENDS IN THE PERIODIC TABLE Noble gases Period alogens Alkaline earth metals Alkali metals TRENDS IN TE PERIDI TABLE Usual charge +1 + +3-3 - -1 Number of Valence e - s 1 3 4 5 6 7 Electron dot diagram X X X X X X X X X 8 Group 1

More information

PERIODIC TABLE. reflect

PERIODIC TABLE. reflect reflect Suppose you wanted to organize your locker at school. How could you separate and arrange everything in an organized way? You could place the books, notebooks, and folders on a shelf that is separate

More information

Ch. 14 The Periodic Table p. 390-406

Ch. 14 The Periodic Table p. 390-406 Name Period PRE-AP 14-1 Development of the Periodic Table Ch. 14 The Periodic Table p. 390-406 Dmitri Mendeleev published the first periodic table in 1869. He organized the elements by atomic mass. He

More information

Ionic and Metallic Bonding

Ionic and Metallic Bonding Ionic and Metallic Bonding BNDING AND INTERACTINS 71 Ions For students using the Foundation edition, assign problems 1, 3 5, 7 12, 14, 15, 18 20 Essential Understanding Ions form when atoms gain or lose

More information