University:
California Institute of Technology
Course:
EE/APh 40 | Physics of Electrical Engineering
Academic year:

2022
Views:

149

Pages:

11
Author:

Clint W.

Energy Level Diagrams and Configurations 1 Energy Level Diagrams Energy level diagrams are used to represent the electron arrangement in an atom 2 Pauli’s Exclusion Principle • No two electrons have the same 4 quantum numbers • One electron will spin up, the other will spin down • We write the electron that spins up first. 3 Aufbau Principle • The number of electrons in an atom is equal to the atomic number • Each added electron will enter the orbitals in the order of increasing energy • Orbitals of lowest energy are filled first • An orbital cannot take more than 2 electrons 4 Aufbau Principle 5 Shells and Subshells 6 Energy Level Diagrams Energy Level Diagram for Oxygen Energy Level Diagram for Argon 7 Hund’s Rule • Every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied • All electrons in singly occupied orbitals have the same spin. • Analogy: When boarding the bus, you would take an empty seat rather than sit beside someone. 8 Vocabulary • Shell: A set of orbitals having the same n-value • Subshell: A set of orbitals of the same type 9 Shells and Subshells • S orbital = 1 s-orbitals • P orbital = 3 p-orbitals • D orbital = 5 d-orbitals • F orbital = 7 f-orbitals 10 Shells and Subshells 11

Energy Level Diagrams and Configurations

Energy Level Diagrams and Configurations - Page 3

Energy Level Diagrams and Configurations - Page 4

Energy Level Diagrams and Configurations - Page 5

Energy Level Diagrams and Configurations - Page 6

Energy Level Diagrams and Configurations - Page 7

Energy Level Diagrams and Configurations - Page 8

Energy Level Diagrams and Configurations - Page 9

Energy Level Diagrams and Configurations - Page 10

Energy Level Diagrams and Configurations - Page 11

of 11

Description

Free up your schedule!

Take 5 seconds to unlock