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

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

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

Transcription

1 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 configurations to classify elements as noble gases, representative elements, transition metals, or inner transition metals. Periodic Table Revisited Russian scientist Dmitri Mendeleev taught chemistry in terms of properties. Mid 800 s - molar masses of elements were known. Wrote down the elements in order of increasing mass. Found a pattern of repeating properties. Mendeleev s s Table Grouped elements in columns by similar properties in order of increasing atomic mass. Found some inconsistencies - felt that the properties were more important than the mass, so switched order. Also found some gaps. Must be undiscovered elements. Predicted their properties before they were found. Mendeleev's Periodic Table (8) The Modern Periodic Table Elements are still grouped by properties. Similar properties are in the same column. Order is by increasing atomic number. Added a column of elements Mendeleev didn t t know about. The noble gases weren t t found because they didn t t react with anything.

2 Horizontal rows are called Periods There are periods Vertical columns called groups Elements are placed in columns by similar properties Also called families A A The elements in the A groups are called the representative elements outer s or p filling A A A A A 8A 0 The group B are called the transition elements These are called the inner transition elements, and they belong here Group A are the alkali metals Group A are the alkaline earth metals Group A is called the Halogens Group 8A are the Noble Gases

3 Why is the Periodic Table arranged in Groups and Periods? The part of the atom another atom sees is the electron cloud. More importantly the outside orbitals. The orbitals fill up in a regular pattern. The outside orbital electron configuration, or VALENCE electron configuration,, repeats. The properties of atoms repeat. H Li Na K 9 Rb Cs Fr 8 s s s s s p s s s p s p s s s p s p s d s s p s p s d s s p s p s d f d 0 p s Group A Alkali metals Valence Electron s configuration Become + ions to obtain the OCTET of electrons p s p s d p s d d 0 p d 0 p p s p s Group A Alkaline Earth Metals Be: s s Mg: s s p s 0Ca: s s p s p s 8Sr: s s p s p s d Ba: s s p s p s d p s 88Ra: s s p s p s d s f d 0 p s Valence Electrons s configuration Become + ions to obtain OCTET of electrons p s p s d d 0 p s d d 0 p p Group A Halogens Valence Electrons s p configuration Become - ions to achieve their octet of electrons s s p s s p s p s s p s p s d s s p s p s s d s s p s p s s d 0 p s f d 9 F p Cl Br d 0 p p I d 0 p 8 At Group 8A Noble Gases 8 Valence Electrons s p configuration Not reactive, have their octet of electrons s s s p s s p s p s s p s p s d s s p s p s d p s d p d 0 p p s s p s p s s d p s f d 0 d 0 0 p He Ne 0 Ar 8 Kr Xe Rn 8 s s Alkali metals all end in s Alkaline earth metals all end in s really should include He, but it fits better later. He has the properties of the noble gases. s orbitals fill up in Period energy level; i.e. s in the second Period The S-S block

4 Transition Metals -d d block d d d s d d d d d 8 s d 0 d 0 The P-blockP p orbitals fill up in Period energy level; i.e. p in the rd Period p p p p p p d orbitals fill up in Period- energy level; i.e. d in the th Period The f - block These are the inner transition elements These f-orbitals f fill up in a Period- Energy level; i.e. f configuration found in the th Period. f f f f f f f f 8 f 9 f 0 f f f f Summarizing s p s p s p Each row (or period) is the energy level for s and p orbitals. d orbitals fill up after previous energy level, so the first d is d even though it s s in row. The d level is therefore a (Period -) filler Summarizing d d d f orbitals start filling at f f fills up in the th Period. f fill in the th Period. Summarizing f f

5 Can we determine an element simply from the Valence Electron Configuration? Let s s try it. s Mg. s p Te. s d Fe Let s s Revisit Short-Hand Notation Write symbol of the noble gas before the element, in [ ]. Then, the rest of the electrons. Aluminum s s full configuration: s s p s p previous noble gas Ne is: s s p so, Al is: [Ne[ Ne] ] s p Shorthand Comes Alive! Let s s Review fill in the shorthand e - config for some of these elements Sn- 0 electrons The noble gas before it is Kr Takes care of, to go Next s Then d 0 Finally p [ Kr ] s d d 0 p Lewis Dot Structures Lewis Dot structures are helpful in visualizing bonding between atoms. Dots correspond to the number of valence electrons. These are the electrons that are involved in interactions between atoms. Dots are placed around the element s symbol, at a time, until pairing is necessary. K Ca In C P S F Lewis Dot Structures The number of unpaired dots corresponds to the number of bonds that the atom can form in a compound. What about ions? 0 - Br -

6 Lewis Dot Structures

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

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

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

Physical Science Notes Properties of Atoms and the Periodic Table

Physical Science Notes Properties of Atoms and the Periodic Table Physical Science Notes Properties of Atoms and the Periodic Table Structure of the Atom Elements are abbreviated in scientific shorthand. Symbols on the periodic table are short or abbreviated ways to

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

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

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

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

Mendeleev s s Periodic Table. Dmitri Mendeleev

Mendeleev s s Periodic Table. Dmitri Mendeleev The Periodic Table History Russian scientist Dmitri Mendeleev taught chemistry in terms of properties. Mid 1800 - molar masses of elements were known. Wrote down the elements in order of increasing mass.

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

Pre PeriodicPeriodic Table Chemistry. No organization of elements. Difficult to find information. Chemistry didn t make sense.

Pre PeriodicPeriodic Table Chemistry. No organization of elements. Difficult to find information. Chemistry didn t make sense. Pre PeriodicPeriodic Table Chemistry No organization of elements. Difficult to find information. Chemistry didn t make sense. Why is the Periodic Table important to us? The periodic table is the most useful

More information

INTRODUCING THE PERIODIC TABLE INFORMATION ON THE PERIODIC TABLE. 1 Name: Date: CHAPTERS 3 & What is the periodic table?

INTRODUCING THE PERIODIC TABLE INFORMATION ON THE PERIODIC TABLE. 1 Name: Date: CHAPTERS 3 & What is the periodic table? 1 Name: Date: CHAPTERS 3 & 5.1 INTRODUCING THE PERIODIC TABLE 1. What is the periodic table? 2. State who made the periodic table? 3. What ability did the periodic table have? INFORMATION ON THE PERIODIC

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

Key Idea questions > How did Mendeleev arrange the elements in his periodic table? > How are elements arranged in the modern periodic table?

Key Idea questions > How did Mendeleev arrange the elements in his periodic table? > How are elements arranged in the modern periodic table? CHAPTER OUTLINE Section 1 Organizing the Elements Key Idea questions > How did Mendeleev arrange the elements in his periodic table? > How are elements arranged in the modern periodic table? Recognizing

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

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

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

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

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

3.01 Elements, Symbols and Periodic Table

3.01 Elements, Symbols and Periodic Table .0 Elements, Symbols and Periodic Table Dr. Fred O. Garces Chemistry 00 Miramar College.0 Elements, symbols and the Periodic Table January 0 The Elements: Building block of Matter The periodic table of

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

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

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

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

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

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 Stability & Periodic Table

Electronic Stability & Periodic Table Electronic Stability & Periodic Table Things at higher energy are less stable!! All living things are dependent on their ability to acquire energy from unstable things! The compounds in the food you eat

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 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

REVIEW QUESTIONS Chapter 8

REVIEW QUESTIONS Chapter 8 Chemistry 101 ANSWER KEY REVIEW QUESTIONS Chapter 8 Use only a periodic table to answer the following questions. 1. Write complete electron configuration for each of the following elements: a) Aluminum

More information

Chapter 2 The Periodic Table

Chapter 2 The Periodic Table Chapter 2 The Periodic Table Periodic Pattern Classification of the Elements A. Metals vs. Nonmetals (Before 1800) 1. Metals - Solids, Lustrous, Malleable, Ductile, Conductors 2. Nonmetals - Solids, Liquids,

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

Horizontal Rows are called Periods. Elements in the same period have the same number of energy levels for ground state electron configurations.

Horizontal Rows are called Periods. Elements in the same period have the same number of energy levels for ground state electron configurations. The Periodic Table Horizontal Rows are called Periods. Elements in the same period have the same number of energy levels for ground state electron configurations. Vertical Rows are called Families or Groups.

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 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

Chapter -9. Classification of Elements The periodic Table

Chapter -9. Classification of Elements The periodic Table Chapter -9 Classification of Elements The periodic Table SYNOPSIS From the earliest times, scientists have been trying to classify the available elements on the basis of their properties. Dobereiner proposed

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

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

Dr. Chris Kozak Memorial University of Newfoundland, Canada. Contents

Dr. Chris Kozak Memorial University of Newfoundland, Canada. Contents General Chemistry Principles and Modern Applications Petrucci Harwood Herring 9 th Edition Chapter 9: The Periodic Table and Some Atomic Properties Dr. Chris Kozak Memorial University of Newfoundland,

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

PERIODIC TABLE NOTES (from chapters 5 and 6)

PERIODIC TABLE NOTES (from chapters 5 and 6) PERIODIC TABLE NOTES (from chapters 5 and 6) I. History of the Periodic Table As the number of elements began to grow, chemists needed a way to all of these elements. [In the 1700 s there were known elements.

More information

Ch 3 Atomic Structure and the Periodic Table. Figure 3.1 size relationship is not to scale, ratio of average diameters atom/nucleus = 10 5

Ch 3 Atomic Structure and the Periodic Table. Figure 3.1 size relationship is not to scale, ratio of average diameters atom/nucleus = 10 5 1 Ch 3 Atomic Structure and the Periodic Table Figure 3.1 size relationship is not to scale, ratio of average diameters atom/nucleus = 10 5 2 Atoms are very small and spherical. Radii Range 0.9 x 10-10

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

1. Which of the following atoms has the highest first ionization energy? 2. Which of the following atoms has the highest third ionization energy?

1. Which of the following atoms has the highest first ionization energy? 2. Which of the following atoms has the highest third ionization energy? 1. Which of the following atoms has the highest first ionization energy? (a) Cs (b) Cl (c) I (d) Ar (e) Na 2. Which of the following atoms has the highest third ionization energy? (a) Si (b) Al (c) S (d)

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

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

PERIODIC TABLE OF GROUPS OF ELEMENTS Elements can be classified using two different schemes.

PERIODIC TABLE OF GROUPS OF ELEMENTS Elements can be classified using two different schemes. 1 PERIODIC TABLE OF GROUPS OF ELEMENTS Elements can be classified using two different schemes. Metal Nonmetal Scheme (based on physical properties) Metals - most elements are metals - elements on left

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

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

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

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

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 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, 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

He Ne Ar Kr. Concept/Skills Development FAMILY RESEMBLANCE. [Wolfgram, D. (1987, December). ChemMatters, p. 16.]

He Ne Ar Kr. Concept/Skills Development FAMILY RESEMBLANCE. [Wolfgram, D. (1987, December). ChemMatters, p. 16.] Concept/Skills Development [Wolfgram, D. (1987, December). ChemMatters, p. 16.] FAMILY RESEMBLANCE Can you place these elements in their proper positions on the Periodic Table without knowing their identity?

More information

2011 PERIODIC TABLE POWER POINT.notebook. February 22, 2011. The Periodic Table. Feb 13 10:42 PM

2011 PERIODIC TABLE POWER POINT.notebook. February 22, 2011. The Periodic Table. Feb 13 10:42 PM Cl O O The Periodic Table O O C C P 1 Why is the Periodic Table important to me? The periodic table is the most useful tool to a chemist. You get to use it on every test. It organizes lots of information

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

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

Electron Configurations, Isoelectronic Elements, & Ionization Reactions. Chemistry 11 Electron Configurations, Isoelectronic Elements, & Ionization Reactions Chemistry 11 Note: Of the 3 subatomic particles, the electron plays the greatest role in determining the physical and chemical properties

More information

ELECTRON CONFIGURATION (SHORT FORM) # of electrons in the subshell. valence electrons Valence electrons have the largest value for "n"!

ELECTRON CONFIGURATION (SHORT FORM) # of electrons in the subshell. valence electrons Valence electrons have the largest value for n! 179 ELECTRON CONFIGURATION (SHORT FORM) - We can represent the electron configuration without drawing a diagram or writing down pages of quantum numbers every time. We write the "electron configuration".

More information

Valence Electrons. Everything that is underlined should get filled in on your notes!

Valence Electrons. Everything that is underlined should get filled in on your notes! Valence Electrons Everything that is underlined should get filled in on your notes! Valence Electrons Valence electrons the electrons that are in the highest (outermost) energy level that level is also

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

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

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 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

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

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 Periodic Table. Chapter 6

The Periodic Table. Chapter 6 The Periodic Table Chapter 6 Why is the Periodic Table important to me? The periodic table is the most useful tool to a chemist. You get to use it on every test. It organizes lots of information about

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

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

Ionic bonds and main group chemistry

Ionic bonds and main group chemistry Ionic bonds and main group chemistry Learning objectives Write Lewis dot structures of atoms and ions Describe physical basis underlying octet rule Predict ionic charges using periodic table Define lattice

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 Elements

The Periodic Table of Elements The Periodic Table of Elements (AKA THE MOST AWESOME THING EVER!) 1 2 The Development of the Periodic Table of Elements In 1869, Dmitri Mendeleev was studying the physical and chemical properties of the

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

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

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

Topic 3 Periodic Trends

Topic 3 Periodic Trends Topic 3 Periodic Trends Chapter 06 Trends on the Periodic Table Chapter 07 Relationships between the elements CHEM 10 T03D01 How are elements arranged Prior to 1735, only 12 elements were known to man

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

Electron Configurations, Orbital Notations and Quantum Numbers Understanding Electron Arrangement and Oxidation States

Electron Configurations, Orbital Notations and Quantum Numbers Understanding Electron Arrangement and Oxidation States Electron Configurations, Orbital Notations and Quantum Numbers Electron Configurations, Orbital Notations and Quantum Numbers Understanding Electron Arrangement and Oxidation States OBJECTIVE Students

More information

The Periodic Table Periodicity

The Periodic Table Periodicity Page 1 of 6 The Periodic Table Periodicity Key terms in this chapter are: Dmitri Mendeleev Periodic Table Group Period s, p, d, f Blocks Alkali Metals Alkaline Earth Metals Halogens Noble Gases Transition

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

Name: Class: Date: ID: A

Name: Class: Date: ID: A Name: Class: Date: ID: A Chapter 5 Assessment Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Mendeleev arranged the elements in his periodic table in

More information

Packet 3b: The Periodic Table

Packet 3b: The Periodic Table Click: http://www.pbs.org/wgbh/nova/physics/hunting-elements.html Periodic Table: Organizes and classifying the elements Dmitri Mendeleev: Russian chemist who arranged according to their increasing atomic.

More information

Name Date Hour Test 3A (145 Points) Electrons, Quantum Numbers and the Periodic Table

Name Date Hour Test 3A (145 Points) Electrons, Quantum Numbers and the Periodic Table Name Date Hour Test 3A (145 Points) Electrons, Quantum Numbers and the Periodic Table Multiple Choice: Read the question carefully. There is only one correct answer (3 points each). 1. Mosley s discovery

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

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

Chapter 4: Atoms and Elements

Chapter 4: Atoms and Elements Chapter 4 Page 1 Chapter 4: Atoms and Elements Atoms are EXTREMELY SMALL particles out of which all knownmatter is made. They are the smallest particle of a chemical element that still have the properties

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

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

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

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

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 Periodic Table elements Dimitri Mendeleev increasing atomic mass periodically Henry Moseley increasing atomic number

The Periodic Table elements Dimitri Mendeleev increasing atomic mass periodically Henry Moseley increasing atomic number 1 The Periodic Table Scientists had identified certain substances as elements and so there were many attempts to arrange the known elements so that there were some correlations between their known properties.

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

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

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

Section 11.3 Atomic Orbitals Objectives

Section 11.3 Atomic Orbitals Objectives Objectives 1. To learn about the shapes of the s, p and d orbitals 2. To review the energy levels and orbitals of the wave mechanical model of the atom 3. To learn about electron spin A. Electron Location

More information

3.06 Periodic Table and Periodic Trends

3.06 Periodic Table and Periodic Trends 3.06 Periodic Table and Periodic Trends Dr. Fred Omega Garces Chemistry 100, Miramar College 1 3.06 Periodic Table and Periodic Trend The Periodic Table and the Elements What is the periodic table? What

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

Elements may combine in more than one proportion to form more than one compound. Examples...

Elements may combine in more than one proportion to form more than one compound. Examples... 1 UNIT 5 - ATOMIC THEORY: THE NUCLEAR MODEL OF THE ATOM 2 3 Dalton s Atomic Theory 1) Each element is made up of tiny, individual particles called atoms. 2) Atoms are indivisible; they cannot be created

More information

The shorthand electron configurations of 35 Br, 43 Tc, 83 Bi, 59 Pr, and 96 Cm are as follows:

The shorthand electron configurations of 35 Br, 43 Tc, 83 Bi, 59 Pr, and 96 Cm are as follows: Section 3.5: Atomic Structure and the Periodic Table Tutorial 1: Writing Electronic Configurations, page 166 1. Step 1: Francium has 87 electrons. Step 2: Assign electrons using the aufbau principle: The

More information