Chapter 2 Atoms and Elements. Electromagnetic Radiation. Electromagnetic Spectrum. Electron Energy Levels. 2.6 Electron Energy Levels
|
|
- Blaise Knight
- 6 years ago
- Views:
Transcription
1 Chapter 2 Atoms and Elements Electromagnetic Radiation 2.6 Electron Energy Levels Electromagnetic radiation Consists of energy particles called photons that travel as waves. Includes low energy particles that have long wavelengths and high energy particles that have short wavelengths. 1 2 Electromagnetic Spectrum Electron Energy Levels Electrons are arranged in specific energy levels called shells. The first energy level (n=1) contains electrons that have the lowest energy. The energy levels are labeled 1, 2, 3, and so on. 3 4 LecturePLUS Timberlake 1
2 Number of Electrons Electrons of similar energy are grouped in energy levels. The maximum number of electrons in any energy level is equal to 2n 2. n = 1 2(1) 2 = 2 n = 2 2(2) 2 = 8 n = 3 2(3) 2 = 18 n = 4 2(4) 2 = Learning Check Solution A. The correct electron shell arrangement for nitrogen is 1) 7 2) 2, 5 3) 2, 2, 3 B. The correct electron shell arrangement for sulfur is 1) 2,6 2) 8,2,6 3) 2, 8, 6 C. The element in period 3 with two electrons in the outermost energy level is 1) Mg 2) Ca 3) Be A. The correct electron shell arrangement for nitrogen is 2) 2, 5 B. The electron configuration for sulfur is 3) 2, 8, 6 C. The element in period 3 with two electrons in the outermost energy level is 1) Mg 7 8 LecturePLUS Timberlake 2
3 Learning Check Solution Indicate the number of electrons in the last electron shell for each of the following elements: Indicate the number of electrons in the last electron shell for each of the following elements: A. O 1) 4 2) 6 3) 8 A. O 2) 6 B. Al 1) 13 2) 3 3) 1 B. Al 2) 3 C. Cl 1) 2 2) 5 3) 7 C. Cl 3) Periodic Law Learning Check All the elements in a group have the same number of electrons in their outermost shells (valence electrons). Elements in a group have similar chemical and physical properties. Example: Group 2 Be 2, 2 Mg 2, 8, 2 Ca 2, 8, 8, 2 Specify if each pair has chemical properties that are similar or not similar: A. Cl and Br B. 2-5 and C. 2-4 and D. P and S E. O and S LecturePLUS Timberlake 3
4 Solution Energy Level Changes Specify if each pair has chemical properties that are 1) similar or 2) not similar: A. Cl and Br similar B. 2-5 and not similar C. 2-4 and similar D. P and S not similar E. O and S similar Electrons are in discrete energy levels. An electron absorbs energy to jump to a higher energy level. When an electron falls to a lower energy level, energy is emitted. In the visible range, the emitted energy appears as a color Learning Check Solution Answer with 1) Energy absorbed 2) Energy emitted 3) No change in energy A.What energy change takes place when an electron in a hydrogen atom moves from the first (n=1) to the second shell (n=2)? B.What energy change takes place when an electron moves from the third shell (n=3) to the second shell (n=2)? A.What energy change takes place when an electron in a hydrogen atom moves from the first (n=1) to the second shell (n=2)? Energy absorbed B.What energy change takes place when an electron moves from the third shell to the second shell? Energy emitted LecturePLUS Timberlake 4
5 Chapter 2 Atoms and Elements 2.7 Subshells and Orbitals Subshells Within each energy level, electrons are grouped into energy sublevels or subshells. All electrons in a subshell have the same energy. The different subshells are designated by the letters s, p, d, f Number of Subshells in a Shell The number of subshells in each shell is the same as the shell number. Shell Number of Types of Number Subshells Subshells n=4 4 4s, 4p, 4d, 4f n=3 3 3s, 3p, 3d n=2 2 2s, 2p n=1 1 1s Energy Levels of Subshells The s subshell has the lowest energy in any shell followed by the p, d, and f subshells. 3d n = 3 3p 3s n = 2 n = 1 2p 2s 1s LecturePLUS Timberlake 5
6 Orbitals Subshells and Orbitals An orbital is a 3 dimensional space around a nucleus in which an electron is most likely to be found. The shape represents electron density (not a path the electron follows).** Each orbital can hold up to 2 electrons. Each subshell has a specific number of orbitals. Each s subshell contains one s orbital. Each p subshell contains three p orbitals. Each d subshell contains five d orbitals. Each f subshell contains seven f orbitals s and p Orbitals Electrons in Each Subshell In an atom, all the orbitals are centered around the nucleus. For example, the illustration of the combination of s and p orbitals is LecturePLUS Timberlake 6
7 Learning Check Solution A. How many electrons can occupy a p orbital? 1) 1 2) 2 3) 3 B. How many p orbitals are in the 2p subshell? 1) 1 2) 2 3) 3 C. How many d orbitals are in the 4d subshell? 1) 1 2) 3 3) 5 D. What is the maximum number of electrons in the 3d subshell? 1) 2 2) 5 3) 10 A. How many electrons can occupy a p orbital? 2) 2 B. How many p orbitals are in the 2p subshell? 3) 3 C. How many d orbitals are in the 4d subshell? 3) 5 D. What is the maximum number of electrons in the 3d subshell? 3) Chapter 2 Atoms and Elements Electron Configuration 2.8 Electron Configurations An electron configuration Is a list of the subshells and the number of electrons in each in order of increasing energy. Contains superscripts that give the number of electrons in each subshell. Of neon is as follows: number of electrons in each subshell 1s 2 2s 2 2p LecturePLUS Timberlake 7
8 Subshell Location on the Periodic Table The periodic table contains subshell blocks arranged in order of increasing energy. Subshell Blocks There is a specific number of electrons in each subshell block. 1 s 1 s 2 p 1 p 2 p 3 p 4 p 5 p d 1 -d f 1 -f Writing an Electron Configuration An electron configuration is written by: Locating the element on the periodic table. Starting with H and writing each subshell notation and electrons in order. Some Electron Configurations First Period H 1s 1 He 1s 2 Second Period Li 1s 2 2s 1 C 1s 2 2s 2 2p 2 Third Period Na 1s 2 2s 2 2p 6 3s 1 Al 1s 2 2s 2 2p 6 3s 2 3p 1 S 1s 2 2s 2 2p 6 3s 2 3p LecturePLUS Timberlake 8
9 Electron Configurations for Atomic Numbers 1-18 Electron Configurations for Elements Noble Gas Notation Learning Check A noble gas notation is used to abbreviate the completed subshells as [noble gas]. For example, the complete configuration of bromine is 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 5 Ar configuration The noble gas notation for bromine is [Ar] 4s 2 3d 10 4p 5 Using the periodic table, write the complete electronic configuration and noble gas notation for each of the following elements: A. Cl B. Sr C. I LecturePLUS Timberlake 9
10 Solution Group Numbers and Subshells A. Cl 1s 2 2s 2 2p 6 3s 2 3p 5 [Ne] 3s 2 3p 5 B. Sr 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 [Kr] 5s 2 C. I 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 5 [Kr] 5s 2 4d 10 5p 5 The Group Number is the sum of the s and p electrons in the outermost shell (valence electrons) LecturePLUS Timberlake 10
Modern Atomic Theory CHAPTER OUTLINE
Chapter 3B Modern Atomic Theory 1 CHAPTER OUTLINE Waves Electromagnetic Radiation Dual Nature of Light Bohr Model of Atom Quantum Mechanical Model of Atom Electron Configuration Electron Configuration
More informationUnit 4B- Electron Configuration- Guided Notes
Unit 4B- Electron Configuration- Guided Notes Atomic Structure Electrons are arranged in or around the nucleus of an atom o First shell can hold a maximum of electrons o Second shell can hold a maximum
More informationTo review Rutherford s model of the atom To explore the nature of electromagnetic radiation To see how atoms emit light
Objectives To review Rutherford s model of the atom To explore the nature of electromagnetic radiation To see how atoms emit light 1 A. Rutherford s Atom.but there is a problem here!! 2 Using Rutherford
More informationCDO AP Chemistry Unit 5
1. a. Calculate the wavelength of electromagnetic radiation that has a frequency of 5.56 MHz. b. Calculate the frequency of electromagnetic radiation that has a wavelength equal to 667 nm. 2. Electromagnetic
More informationC H E M 1 CHEM 101-GENERAL CHEMISTRY CHAPTER 6 THE PERIODIC TABLE & ATOMIC STRUCTURE INSTR : FİLİZ ALSHANABLEH
C H E M 1 CHEM 101-GENERAL CHEMISTRY CHAPTER 6 THE PERIODIC TABLE & ATOMIC STRUCTURE 0 1 INSTR : FİLİZ ALSHANABLEH CHAPTER 6 THE PERIODIC TABLE & ATOMIC STRUCTURE The Electromagnetic Spectrum The Wave
More informationEx: N has 5 valence electrons, so it s Lewis structure would look like: N
Chemistry Ms. Ye Review: Bohr Model of the Atom Name Date Block Electrons are shown in concentric shells or energy levels around the nucleus o The first shell can hold up to o The second shell can hold
More informationKWL CHART--ELECTRONS
KWL CHART--ELECTRONS WHAT DO I ALREADY KNOW ABOUT ELECTRONS? WHAT DO I WANT TO KNOW CONCERNING ELECTRONS? WHAT HAVE I LEARNED TODAY ABOUT ELECTRONS? GPS STANDARD SC3. Students will use the modern atomic
More informationCh. 4 Sec. 1-2, Ch. 3 sec.6-8 ENERGY CHANGES AND THE QUANTUM THEORY THE PERIODIC TABLE
Ch. 4 Sec. 1-2, Ch. 3 sec.6-8 ENERGY CHANGES AND THE QUANTUM THEORY THE PERIODIC TABLE What Makes Red Light Red? (4.1) Electromagnetic Radiation: energy that travels in waves (light) Waves Amplitude: height
More informationLIMITATIONS OF RUTHERFORD S ATOMIC MODEL
ELECTRONS IN ATOMS LIMITATIONS OF RUTHERFORD S ATOMIC MODEL Did not explain the chemical properties of atoms For example, it could not explain why metals or compounds of metals give off characteristic
More informationLight, Waves, and Electrons
Light, Waves, and Electrons Light: Travels 1. 2. Light Waves Wavelength Frequency Electromagnetic Spectrum Speed of light The product of frequency of a wave and wavelength = the speed of light Calculate
More informationWhite Light. Chapter 7 Electron Structure of the Atom
Chapter 7 Electron Structure of the Atom Electromagnetic Radiation and Energy The Bohr Model of the Hydrogen Atom The Modern Model of the Atom Periodicity of Electron Configurations Valence Electrons for
More informationLABELING ELECTRONS IN ATOMS
Date: Name: LABELING ELECTRONS IN ATOMS The location of each electron in an atom is determined by a few different factors. Each factor is represented by a QUANTUM NUMBER. Prediction: What do you think
More informationName Class Date. Chapter: Arrangement of Electrons in Atoms
Assessment Chapter Test A Chapter: Arrangement of Electrons in Atoms In the space provided, write the letter of the term that best completes each sentence or best answers each question. 1. Which of the
More informationExample: What is the number of electrons in an atom that has 3 protons and 4 neutrons? A. 3. B. 5. C. 7. D. 10.
Structure of atom: PROTONS Protons are located in the nucleus of an atom. They carry a +1 electrical charge and have a mass of 1 atomic mass unit (u). NEUTRONS Neutrons are located in the nucleus of an
More informationUnit 3 Periodic Table and Quantum HW Packet Name Date. Periodic Table Concepts. 1. In what family are the most active metals located?
Directions: Answer the following questions. Periodic Table Concepts 1. In what family are the most active metals located? 2. In what family are the most active non-metals located? 3. What family on the
More informationUNIT 2 PART 1: ELECTRONS
UNIT 2 PART 1: ELECTRONS Electrons in an Atom Bohr s Model: Electrons resided in an allowed orbit. Quantum Mechanics Model: Probability of finding an electron in an area around the nucleus. This area around
More informationEM SPECTRUM, WAVELENGTH, FREQUENCY, AND ENERGY WORKSHEET
EM SPECTRUM, WAVELENGTH, FREQUENCY, AND ENERGY WORKSHEET 1.) Look at the EM spectrum below to answer this question. As you move across the visible light spectrum from red to violet (A) Does the wavelength
More informationChapter 2 Atoms and Elements. 2.4 The Atom
Chapter 2 Atoms and Elements 2.4 The Atom Atoms Dalton s Atomic Theory Are tiny particles of matter. Of an element are similar and different from other elements. Of two or more different elements combine
More informationUnit 1. Electronic Structure page 1
Unit 1 Electronic Structure Section 1. Learning Outcomes Practice Questions Answers Electronic Structure Electromagnetic spectrum / calculations Electron configuration / Periodic Table Electronic Structure
More information10 Modern Atomic Theory and the Periodic Table. Chapter Outline. ElectromagneDc RadiaDon. ElectromagneDc RadiaDon. ElectromagneDc RadiaDon
10 Modern Atomic Theory and the Periodic Table Chapter Outline 10.1 ElectromagneDc RadiaDon 10.2 The Bohr Atom 10.3 10.4 10.5 Electron Structures and the Periodic Table The amazing colors of fireworks
More informationCh 9 Electrons in Atoms & the Periodic Table Study Sheet Acc. Chemistry SCANTRON. Name /99. 3) Light is a type of matter. 3)
Ch 9 Electrons in Atoms & the Periodic Table Study Sheet Acc. Chemistry SCANTRON Name /99 TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) When the elements are arranged
More informationElectrons in Atoms. Section 5.1 Light and Quantized Energy
Name Date Class 5 Electrons in Atoms Section 5.1 Light and Quantized Energy In your textbook, read about the wave nature of light. Use each of the terms below just once to complete the passage. amplitude
More informationUnit 7. Atomic Structure
Unit 7. Atomic Structure Upon successful completion of this unit, the students should be able to: 7.1 List the eight regions of the electromagnetic spectrum in the designated order and perform calculations
More informationMODERN ATOMIC THEORY AND THE PERIODIC TABLE
C10 04/19/2013 13:34:14 Page 114 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
More informationModern Atomic Theory and the Periodic Table
Modern Atomic Theory and the Periodic Table Chapter 10 the exam would have to be given earlier Hein and Arena Version 1.1 Eugene Passer Chemistry Department Bronx Community 1 College John Wiley and Sons,
More informationElectrons, Energy, & the Electromagnetic Spectrum Notes
Electrons, Energy, & the Electromagnetic Spectrum Notes Bohr Model Diagram Interpretation What form of EM radiation is released when an electron in a hydrogen atom falls from the 5 th energy level to the
More informationName Chemistry-PAP Period. Notes: Electrons. Light travels through space as a wave. Waves have three primary characteristics:
Name Chemistry-PAP Period The Wave Nature of Light Notes: Electrons Light travels through space as a wave. Waves have three primary characteristics: Wavelength (λ): the distance between 2 consecutive crests
More informationOrbital Diagrams & Electron Configurations for Atoms and Ions
Orbital Diagrams & Electron Configurations for Atoms and Ions Section 3.5 The Periodic Table is like a MAP that describes the arrangement of electrons within their orbitals. Orbital diagrams represent
More informationArrangement of Electrons. Chapter 4
Arrangement of Electrons Chapter 4 Properties of Light -Light s interaction with matter helps to understand how electrons behave in atoms -Light travels through space & is a form of electromagnetic radiation
More informationClassify each of these statements as always true, AT; sometimes true, ST; or never true, NT.
ELECTRONS IN ATOMS Chapter Quiz Classify each of these statements as always true, AT; sometimes true, ST; or never true, NT. 1. The orbitals of a principal energy level are lower in energy than the orbitals
More informationA.P. Chemistry Practice Test - Ch. 7, Atomic Structure and Periodicity
A.P. Chemistry Practice Test - Ch. 7, Atomic Structure and Periodicity 1) Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is MHz. A) 50 B) 20 C)
More informationCHAPTER 5 Electrons in Atoms
CHAPTER 5 Electrons in Atoms 5.1 Light & Quantized Energy Was the Nuclear Atomic model incomplete? To most scientists, the answer was yes. The arrangement of electrons was not determined > Remember...the
More informationExam Electrons and Periodic Table
1-20 multiple choice. Answer on scantron. 21-25 short response. Answer on exam paper. All questions are 4 points each. 1. Which term is defined as the region in an atom where an electron is most likely
More informationName Date Class MODELS OF THE ATOM
5.1 MODELS OF THE ATOM Section Review Objectives Identify inadequacies in the Rutherford atomic model Identify the new assumption in the Bohr model of the atom Describe the energies and positions of electrons
More informationWarm-up For sulfur: 1. How many valence electrons does it have? 2. What ion does this typically form? 3. Write the electron configuration for the ion.
Warm-up For sulfur: 1. How many valence electrons does it have? 2. What ion does this typically form? 3. Write the electron configuration for the ion. Nucleus Contains 99.9% of the mass of an atom Found
More informationUNIT (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 informationSection 11: Electron Configuration and Periodic Trends
Section 11: Electron Configuration and Periodic Trends The following maps the videos in this section to the Texas Essential Knowledge and Skills for Science TAC 112.35(c). 11.01 The Bohr Model of the Atom
More information8. Which of the following could be an isotope of chlorine? (A) 37 Cl 17 (B) 17 Cl 17 (C) 37 Cl 17 (D) 17 Cl 37.5 (E) 17 Cl 37
Electronic Structure Worksheet 1 Given the following list of atomic and ionic species, find the appropriate match for questions 1-4. (A) Fe 2+ (B) Cl (C) K + (D) Cs (E) Hg + 1. Has the electron configuration:
More informationChapter 2: Atoms and the Periodic Table
1. Which element is a nonmetal? A) K B) Co C) Br D) Al Ans: C Difficulty: Easy 2. Which element is a metal? A) Li B) Si C) Cl D) Ar E) More than one of the elements above are metals. 3. Which element is
More informationElectrons! Chapter 5, Part 2
Electrons! Chapter 5, Part 2 3. Contained within sublevels are orbitals: pairs of electrons each having a different space or region they occupy a. Each sublevel contains certain orbitals: i. s sublevel
More informationThe Periodic Table. Atoms, Elements, and the Periodic Table
Atoms, Elements, and the Periodic Table Element: a pure substance that cannot be broken down into simpler substances by a chemical reaction. Each element is identified by a one- or two-letter symbol. Elements
More informationChapter 3: Electron Structure and the Periodic Law
Chapter 3: Electron Structure and the Periodic Law PERIODIC LAW This is a statement about the behavior of the elements when they are arranged in a specific order. In its present form the statement is:
More information5. N. 9. Cl 2. Pb. 6. Ag. c. 4f d. 3d
Brief Instructions An electron configuration is a method of indicating the arrangement of electrons about a nucleus. A typical electron configuration consists of numbers, letters, and superscripts with
More informationQuantum Theory and the Electronic Structure of Atoms
Quantum Theory and the Electronic Structure of Atoms Chapter 7 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 1 Properties of Waves Wavelength ( ) is the distance
More informationElectron Configurations: Assigning each electron in an atom to the energy level and sublevel it occupies in the atom. Number of Electrons
First some terms and more information about the structure of the atom: 1) Energy level is no longer an orbit but more like a boundary or maximum distance from the nucleus that electrons occupy. 1, 2, 3
More informationChapter 9. Blimps, Balloons, and Models for the Atom. Electrons in Atoms and the Periodic Table. Hindenburg. Properties of Elements Hydrogen Atoms
Chapter 9 Electrons in Atoms and the Periodic Table Blimps, Balloons, and Models for the Atom Hindenburg Blimps, Balloons, and Models for the Atom Properties of Elements Hydrogen Atoms Helium Atoms 1 Blimps,
More informationELEMENTS & MATTER. September 7, 2016
ELEMENTS & MATTER September 7, 2016 Review Problems: 9/7/2016 1. Fill in the following information: Atomic Symbol Atomic Number Proton Neutron Electron Mass Num. Atomic Mass 34 36 Ca 2+ 2. Identify which
More informationDuncan. Electrons, Energy, & the Electromagnetic Spectrum Notes Simplified, 2-D Bohr Model: Figure 1. Figure 2. Figure 3
Electrons, Energy, & the Electromagnetic Spectrum Notes Simplified, 2-D Bohr Model: Figure 1 Figure 2 Figure 3 Light Calculation Notes Here s how the type/form of EM radiation can be determined The amount
More informationELECTRONIC STRUCTURE OF ATOMS
ELECTRONIC STRUCTURE OF ATOMS Electron Spin The electron: spins around its own axis acts as an tiny magnet (any moving electrical charge creates a magnetic field around itself) can spin in either of 2
More informationE J The electron s energy difference between the second and third levels is J. = J
The wavelength of light emitted is 654 nm. = c f c 3.00 10 8 m/s f c 3.00 108 m 1s 6.54 10 7 m f 4.59 4.59 10 14 z 1 s 10 14 The frequency of the light emitted is 4.59 10 14 z. E hf h 6.63 10 34 J/z E
More informationDevelopment of the Periodic Table. Chapter 5. Light and the EM Spectrum. Light
Chapter 5 Periodic Table Song Periodicity and Atomic Structure Development of the Periodic Table Mid-1800 s, several scientists placed known elements in order based on different criteria. Mendeleev s and
More information1. Electronic Structure 2. Electron Configuration 3. Core Notation 4. EC Relationship to Periodic Table 5. Electron Configuration of Ions
Pre-AP Chemistry 11 Atomic Theory II Name: Date: Block: 1. Electronic Structure 2. Electron Configuration 3. Core Notation 4. EC Relationship to Periodic Table 5. Electron Configuration of Ions Electronic
More informationQuantum Theory & Electronic Structure of Atoms. It s Unreal!! Check your intuition at the door.
Quantum Theory & Electronic Structure of Atoms It s Unreal!! Check your intuition at the door. 1 Quantum Theory of the Atom Description of the atom and subatomic particles. We will focus on the electronic
More informationThe atom has a small dense nucleus which. contains protons (+1 charge). contains electrons ( 1 charge).
Section 11.1 Rutherford s Atom Nuclear Model of the Atom Chapter 11 Modern Atomic Theory The atom has a small dense nucleus which is positively charged. contains protons (+1 charge). contains neutrons
More informationParticle Behavior of Light 1. Calculate the energy of a photon, mole of photons 2. Find binding energy of an electron (know KE) 3. What is a quanta?
Properties of Electromagnetic Radiation 1. What is spectroscopy, a continuous spectrum, a line spectrum, differences and similarities 2. Relationship of wavelength to frequency, relationship of E to λ
More informationChapter 6. Electronic Structure of Atoms
Chapter 6 Electronic Structure of Atoms Electronic Structure Electronic structure the arrangement and energy of electrons 1 st lets talk about waves Why? Extremely small particles have properties that
More informationElectronic Structure of Atoms and the Periodic table. Electron Spin Quantum # m s
Electronic Structure of Atoms and the Periodic table Chapter 6 & 7, Part 3 October 26 th, 2004 Homework session Wednesday 3:00 5:00 Electron Spin Quantum # m s Each electron is assigned a spinning motion
More informationChemistry Chapter 9 Review. 2. Calculate the wavelength of a photon of blue light whose frequency is 6.3 x s -1.
Chemistry Chapter 9 Review 1. What is the frequency of radiation that has a wavelength of 4.7 x 10-5 cm? 2. Calculate the wavelength of a photon of blue light whose frequency is 6.3 x 10 14 s -1. 3. The
More informationWhich order of statements represents the historical development of the atomic model? A) C D A B B) C D B A C) D B A C D) D B C A
1. The mass of a proton is approximately equal to the mass of A) an electron B) a neutron C) an alpha particle D) a beta particle 2. What is the number of electrons in an atom that has 20 protons and 17
More informationElectron Arrangement - Part 2
Brad Collins Electron Arrangement - Part 2 Chapter 9 Some images Copyright The McGraw-Hill Companies, Inc. Review Energy Levels Multi-electron 4d 4d 4d 4d 4d n = 4 4s 4p 4p 4p 3d 3d 3d 3d 3d n=3, l = 2
More informationCHAPTER 5. Electrons in Atoms. Rutherford Model. Bohr Model. Plum Pudding Model. 5.1 Atomic Models
CHAPTER 5 Electrons in Atoms 5.1 Atomic Models The Chemical properties of atoms, ions, and molecules are related to the arrangement of the electrons within them. The first model of the atom was Dalton
More informationNote that the protons and neutrons are each almost 2,000 times more massive than an electron; What is the approximate diameter of an atom?
Atomic Structure and the Periodic Table Evolution of Atomic Theory The ancient Greek scientist Democritus is often credited with developing the idea of the atom Democritus proposed that matter was, on
More informationAtoms, Electrons and Light MS. MOORE CHEMISTRY
Atoms, Electrons and Light MS. MOORE CHEMISTRY Atoms Remember Rutherford??? What did he discover with his gold foil experiment. A: Atoms contain a dense nucleus where the protons and neutrons reside. ATOMS
More informationChapter 11 Prep Test CLASS SET!!!! Matching
CLASS SET!!!! ID: A Chapter 11 Prep Test Matching Match each item with the correct statement below. A electronegativity D period B ionization energy E transition metal C atomic radius F group 1 type of
More informationTest bank chapter (7)
Test bank chapter (7) Choose the most correct answer 1. The lowest energy state of an atom is referred to as its a) bottom state. b) ground state. c) fundamental state. d) original state. 2. All s orbitals
More informationNotes: Electrons and Periodic Table (text Ch. 4 & 5)
Name Per. Notes: Electrons and Periodic Table (text Ch. 4 & 5) NOTE: This set of class notes is not complete. We will be filling in information in class. If you are absent, it is your responsibility to
More informationCHEMISTRY - KIRSS 2E CH.3 - ATOMIC STRUCTURE: EXPLAINING THE PROPERTIES OF ELEMENTS
!! www.clutchprep.com CONCEPT: THE NATURE OF LIGHT Visible light represents a small portion of the continuum of radiant energy known as. The visible light spectrum ranges from to. Its wave properties of
More informationName: Unit 3 Guide-Electrons In Atoms
Name: Unit 3 Guide-Electrons In Atoms Importance of Electrons Draw a complete Bohr model of the atom. Write an element s electron configuration. Know how the symbols used in ECs relate to electron properties
More informationAP Chapter 6 Study Questions
Class: Date: AP Chapter 6 Study Questions True/False Indicate whether the statement is true or false. 1. The wavelength of radio waves can be longer than a football field. 2. Black body radiation is the
More informationKey Equations. Determining the smallest change in an atom's energy.
ATOMIC STRUCTURE AND PERIODICITY Matter and Energy Key Equations λν = c ΔE = hν Relating speed of a wave to its wavelength and frequency. Determining the smallest change in an atom's energy. H( λ =R n
More informationA bit of review. Atoms are made of 3 different SUB-ATOMIC PARTICLES: 1. ELECTRONS 2. PROTONS 3. NEUTRONS
Chemistry in Action A bit of review Chemistry is the study of MATTER and ENERGY. Matter is anything that has MASS. All matter is made of super small particles called ATOMS. Atoms are made of 3 different
More informationCDO CP Chemistry Unit 5
1. Of the three particles; protons, neutrons, and electrons, which one(s) are responsible for most of the mass of an atom? a) the protons only b) the electrons only c) the neutrons only d) the protons
More informationChemistry 111 Dr. Kevin Moore
Chemistry 111 Dr. Kevin Moore Black Body Radiation Heated objects emit radiation based on its temperature Higher temperatures produce higher frequencies PhotoElectric Effect Light on a clean metal surface
More informationCHEMISTRY - ZUMDAHL 8E CH.7 - ATOMIC STRUCTURE & PERIODICITY.
!! www.clutchprep.com CONCEPT: THE NATURE OF LIGHT Visible light represents a small portion of the continuum of radiant energy known as. The visible light spectrum ranges from to. Its wave properties of
More informationWhere are the s, p, d, f orbitals located on the periodic table? Identify them on the diagram below.
Chapter 4 Arrangement of Electrons in Atoms Section 3: Electron Configuration Objectives: Be able to define: Aufbau Principle, Pauli Exclusion Principle, Hund s rule. Be able to list the number of electrons
More informationATOMIC STRUCTURE. Wavelength and Frequency
ATOMIC STRUCTURE Wavelength and Frequency WAVELENGTH AND FREQUENCY The Wave Nature of Light Electromagnetic Radiation aka. Radiant energy or light A form of energy having both wave and particle characteristics
More informationChapter 4. Table of Contents. Section 1 The Development of a New Atomic Model. Section 2 The Quantum Model of the Atom
Arrangement of Electrons in Atoms Table of Contents Section 1 The Development of a New Atomic Model Section 2 The Quantum Model of the Atom Section 3 Electron Configurations Section 1 The Development of
More informationUnit 3: Electron configuration and periodicity
Unit 3: Electron configuration and periodicity Group 1 BOHR MODELS Group 18 H Group 2 Group 13 Group 14 Group 15 Group 16 Group 17 He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca His theory couldn t
More informationAtoms with More than One Electron
Fun with the Periodic Table Activity 6 Atoms with More than One Electron GOALS In this activity you will: View the spectra of various materials. Graphically analyze patterns in the amounts of energy required
More informationQuantum Theory and Electron Configurations
Chapter 5 Chapter 5 Quantum Theory and Electron Configurations It s all about color In terms of atomic models, so far: Dalton (1803) = Tiny, solid particle Thomson (1897) = Plum Pudding model Electrons
More information#9 Modern Atomic Theory Quantitative Chemistry
Name #9 Modern Atomic Theory Quantitative Chemistry Student Learning Map Unit EQ: What is the current model of the atom? Key Learning: The current model of the atom is based on the quantum mechanical model.
More informationCHAPTER 4 10/11/2016. Properties of Light. Anatomy of a Wave. Components of a Wave. Components of a Wave
Properties of Light CHAPTER 4 Light is a form of Electromagnetic Radiation Electromagnetic Radiation (EMR) Form of energy that exhibits wavelike behavior and travels at the speed of light. Together, all
More informationChapter 7. Atomic Structure and Periodicity. Copyright 2018 Cengage Learning. All Rights Reserved.
Chapter 7 Atomic Structure and Periodicity Chapter 7 Table of Contents (7.1) (7.2) Electromagnetic radiation The nature of matter (7.3) The atomic spectrum of hydrogen * (7.4) The Bohr model * (7.5) (7.6)
More informationChem 30A. Ch 9. Electrons in Atoms and the Periodic Table
Chem 30A Ch 9. Electrons in Atoms and the Periodic Table Electronic Structure of Atoms Rutherford s Nuclear Model of the Atom e + Ques%on: How are the electrons arranged? Atomic Spectra White light emits
More informationChapter 2: The Structure of the Atom and the Periodic Table
Chapter 2: The Structure of the Atom and the Periodic Table 1. What are the three primary particles found in an atom? A) neutron, positron, and electron B) electron, neutron, and proton C) electron, proton,
More informationActivity Electron Configurations
Activity 151-10 Electron Configurations Directions: This GLA worksheet goes over two different ways to write the electron configuration for a specific element. Electron configurations are a way of specifying
More informationThe Periodic Table & Electronic Structure
Periodic Table The Periodic Table & Electronic Structure Is there an overall reason that the elements are arranged in the order that they are? Yes! We ve seen that the elements are arranged in order of
More informationCHEMISTRY 110 EXAM 1 SEPTEMBER 20, 2010 FORM A
CHEMISTRY 110 EXAM 1 SEPTEMBER 20, 2010 FORM A 1. What are the correct numbers of protons, neutrons and electrons in a 39 K + ion? p n e A. 20 19 18 B. 20 19 19 C. 19 20 18 D. 19 20 19 E. 20 19 20 2. Which
More informationCh. 7 The Quantum Mechanical Atom. Brady & Senese, 5th Ed.
Ch. 7 The Quantum Mechanical Atom Brady & Senese, 5th Ed. Index 7.1. Electromagnetic radiation provides the clue to the electronic structures of atoms 7.2. Atomic line spectra are evidence that electrons
More informationAtomic Structure. 1. For a hydrogen atom which electron transition requires the largest amount of energy?
Atomic Structure 1. For a hydrogen atom which electron transition requires the largest amount of energy? A. n = 4 to n = 10 B. n = 3 to n = 2 C. n = 3 to n = 4 D. n = 1 to n = 3 E. n = 2 to n = 4 2. Which
More informationChapter 3: Electron Structure and the Periodic Law
PERIODIC LAW This is a statement about the behavior of the elements when they are arranged in a specific order. In its present form the statement is: Elements with similar chemical properties occur at
More informationModern Atomic Theory and Electron Configurations
Chem 101 Modern Atomic Theory and Electron Configurations Lectures 8 and 9 Types of Electromagnetic Radiation Electromagnetic radiation is given off by atoms when they have been excited by any form of
More informationModern Atomic Theory. (a.k.a. the electron chapter!) Chemistry 1: Chapters 5, 6, and 7 Chemistry 1 Honors: Chapter 11
Modern Atomic Theory (a.k.a. the electron chapter!) 1 Chemistry 1: Chapters 5, 6, and 7 Chemistry 1 Honors: Chapter 11 ELECTROMAGNETIC RADIATION 2 Electromagnetic radiation. 3 4 Electromagnetic Radiation
More informationExplain the mathematical relationship among the speed, wavelength, and frequency of electromagnetic radiation.
Preview Objectives Properties of Light Wavelength and Frequency The Photoelectric Effect The Hydrogen-Atom Line-Emission Spectrum Bohr Model of the Hydrogen Atom Photon Emission and Absorption Section
More information1. This man said that matter was made of atoms and that all atoms of the same element were identical.
The Atomic Structure retest READ ALL QUESTIONS CAREFULLY!! and Answer Correctly! 1. This man said that matter was made of atoms and that all atoms of the same element were identical. 2. This man said that
More informationAtomic Emission Spectra. and. Flame Tests. Burlingame High School Chemistry
Atomic Structure Atomic Emission Spectra and Flame Tests Flame Tests Sodium potassium lithium When electrons are excited they bump up to a higher energy level. As they bounce back down they release energy
More information2) The energy of a photon of light is proportional to its frequency and proportional to its wavelength.
Advanced Chemistry Chapter 13 Review Name Per Show all work Wave Properties 1) Which one of the following is correct? A) ν + λ = c B) ν λ = c C) ν = cλ D) λ = c ν E) νλ = c 2) The energy of a photon of
More informationChapter 2: Atoms and the Periodic Table
1. Which element is a nonmetal? A) K B) Co C) Br D) Al Ans: C Difficulty: Easy 2. Which element is a metal? A) Li B) Si C) Cl D) Ar E) More than one of the elements above is a metal. Ans: A Difficulty:
More information1. Draw a wave below and label the following parts: peak, trough, wavelength and amplitude
Wave Nature of Light 1. Draw a wave below and label the following parts: peak, trough, wavelength and amplitude 2. Draw two waves with different frequencies and circle the wave that has a higher frequency.
More informationChemistry 101 Chapter 11 Modern Atomic Theory
Chemistry 101 Chapter 11 Modern Atomic Theory Electromagnetic radiation: energy can be transmitted from one place to another by lightmore properly called electromagnetic radiation. Many kinds of electromagnetic
More information