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Electron Configuration Electrons in Atoms Adapted from Christy Johannesen
A. General Rules zPauli Exclusion Principle yEach orbital can hold TWO electrons with opposite spins.
A. General Rules zAufbau Principle yElectrons fill the lowest energy orbitals first. yLazy Tenant Rule
RIGHT WRONG A. General Rules zHunds Rule yWithin a sublevel, place one e - per orbital before pairing them. yEmpty Bus Seat Rule
O 8e - zOrbital Diagram zElectron Configuration 1s 2 2s 2 2p 4 B. Notation 1s 2s 2p
zShorthand Configuration S 16e - Valence Electrons Core Electrons S16e - [Ne] 3s 2 3p 4 1s 2 2s 2 2p 6 3s 2 3p 4 B. Notation zLonghand Configuration
© 1998 by Harcourt Brace & Company s p d (n-1) f (n-2) C. Periodic Patterns
zPeriod # yenergy level (subtract for d & f) zA/B Group # ytotal # of valence e - zColumn within sublevel block y# of e - in sublevel
s-block1st Period 1s 1 1st column of s-block C. Periodic Patterns zExample - Hydrogen
C. Periodic Patterns zShorthand Configuration yCore e - : Go up one row and over to the Noble Gas. yValence e - : On the next row, fill in the # of e - in each sublevel.
[Ar]4s 2 3d 10 4p 2 C. Periodic Patterns zExample - Germanium
zFull energy level zFull sublevel (s, p, d, f) zHalf-full sublevel D. Stability
zElectron Configuration Exceptions yCopper EXPECT :[Ar] 4s 2 3d 9 ACTUALLY :[Ar] 4s 1 3d 10 yCopper gains stability with a full d-sublevel. D. Stability
zElectron Configuration Exceptions yChromium EXPECT :[Ar] 4s 2 3d 4 ACTUALLY :[Ar] 4s 1 3d 5 yChromium gains stability with a half-full d-sublevel. D. Stability
zIon Formation yAtoms gain or lose electrons to become more stable. yIsoelectronic with the Noble Gases.
O 2- 10e - [He] 2s 2 2p 6 D. Stability zIon Electron Configuration yWrite the e - config for the closest Noble Gas yEX: Oxygen ion O 2- Ne
IV. Electron Configuration (p , ) Ch. 4 - Electrons in Atoms.
C. Johannesson IV. Electron Configuration (p , ) Ch. 4 - Electrons in Atoms.
Ch. 5- Electrons and atoms (cont.). General Rules zWe have 3 general rules that we follow when determining electron configuration yAufbau Principal yPauli.
C. Johannesson IV. Electron Configuration (p. 156) Ch. 4 - Electrons in Atoms.
IV. Electron Configuration Electrons in Atoms. A. General Rules zPauli Exclusion Principle yEach orbital can hold 2 electrons with opposite spins. y “Opposites.
IV. Electron Configuration Ch. 4 - Electrons in Atoms.
Electron Configuration Electrons in Atoms. Energy levels, sublevels and orbitals Energy level (cloud or shell) SublevelsOrbitalsNumber of electrons 1s1.
Electron Arrangement. Atoms Review Name the three particles of the atom and their respective charges are: a. Proton positive b. Neutron_neutral, no charge.
C. Periodic Patterns zShorthand (Noble gas) Configuration yCore e - : Go up one row and over to the Noble Gas. yValence e - : On the next row, fill in.
Electron Configuration Ch. 4 - Electrons in Atoms.
Electron Configuration Electrons in Atoms. A. General Rules zPauli Exclusion Principle yEach orbital can hold TWO electrons with opposite spins.
IV. ELECTRON CONFIGURATION (P ) Ch. 5 - Electrons in Atoms y C. JOHANNESSON.
Electron Configuration Electrons in Atoms General Rules zPauli Exclusion Principle yEach orbital can hold TWO electrons with opposite spins.
C. Johannesson Aufbau Principle Electron Configuration.
YChemistry is explained through sharing or transferring electrons. yThis determines which elements can bond and what type of bond they form Why is this.
Electron Configuration Unit 4 - Electrons in Atoms.
Quantum Model of the Atom Unit 5- Electrons in Atoms.
Electron configuration Electrons in Atoms v=Vb6kAxwSWgU.
Methods of predicting the arrangement and location of electrons in atoms Electron Arrangement.
Electrons in Atoms. Wavelength ( ) - length of one complete wave measured in m, cm, or nm In light it tells us which color it is Frequency ( ) -
Electron Configuration Electrons in Atoms. General Rules Pauli Exclusion Principle Each orbital can hold TWO electrons with opposite spins.
I. Waves & Particles Ch. 6 – Electronic Structure of Atoms.
Electron Orbits Pick-up Sheets on the Table Orbit Notes Orbit cut-outs in notebook.
Electron Configuration Filling-Order of Electrons in an Atom.
Electron Configuration UNIT 4 – QUANTUM MODEL:. Warm Up Where are the s, p, d, f orbitals located on the periodic table?
Ch. 5 - Electrons in Atoms. Wavelength ( ) - length of one complete wave measured in m, cm, or nm In light it tells us which color it is Frequency.
Electrons in Atoms. Energy level (shell) SublevelsOrbitalsNumber of electrons 1s1 s orbital2 2s, p1 s orbital 3 p orbitals 8 3s, p, d1 s orbital 3 p orbitals.
Ch. 4 - Electrons in Atoms Electron Configuration.
Atoms and the Periodic Table. Atoms Atoms are the smallest pieces of matter that contain all the properties of a specific element Each element contains.
I. Waves & Particles Ch. 4 - Electrons in Atoms. A. Waves zWavelength ( ) - length of one complete wave zFrequency ( ) - # of waves that pass a point.
Knowing the position of electrons helps us with many topics: Why chemical reactions occur Why some atoms are more stable than others Why some.
C. Johannesson Ch. 4 - Electrons in Atoms. Section 1 The Development of a New Atomic Model Objectives Explain the mathematical relationship among the.
Electron Configuration Shorthand way of writing electron configuration of atoms 10 Ne: 1s 2 2s 2 2p 6 Elemental Symbol and atomic number Principal energy.
Unit 2: Atoms and Bonding 2.63 Bohr’s model, Quantum Mechanical model, electron configuration Textbook ch 6.5, 6.8, and 6.9.
Chapter 5 Orbital Filling Diagrams and Electron Dot Diagrams.
UNIT 17 Review, Part II Atoms, Electrons, Periodic Table & Nuclear.
Electrons Energy levels – region around nucleus where electrons are likely to be found. Fixed energy levels are like rungs of a ladder. An electron.
Electron Configuration Chemistry. Learning Objectives TLW express the arrangement of electrons in atoms through electron configurations (TEKS 6.E)
Electron Configurations Unit 3.7 and 3.8. Orbitals Region outside the nucleus where the electron has the highest probability of being. Drawn with a fuzzy.
ELECTRON CONFIGURATION The arrangement of electrons in an atom Each element has a distinct electron configuration Electron configuration describes the.
Chapter 5 Notes Electron Models. Evolution of Electron Models The first model of the electron was given by J.J. Thompson—the electron’s discoverer. His.
1s2s 2p3s 3p 3d n = 1 n = 2 n = 3. NUCLEUS 1s 2s 2p 3s 3p 3d 4s 4p4d 4f Energy Level SublevelsTotal Orbitals 1s1s1s 2s,p1s+3p = 4 3s,p,d1s+3p+5d = 9 4s,p,d,f1s+3p+5d+7f.
Valence Electrons and Electron Configuration Explaining the arrangement of electrons 08/27 & 08/28.
Electron Configuration Chapter 3 Section 3.2 Things we know… Electrons are negatively charged. Electrons are very small 1/2000 that of a proton or neutron.
Electron Configuration and Orbital Diagrams. Electron Configuration Shows the arrangement of electrons in an atom.
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