Chemistry - Quantum Numbers

Pauli Exclusion Principle

states that no two atoms will have the same energies and will have different quantum numbers

Hund’s Rule

states that an electron must occupy all subshells before occupying a second electron in the orbital.

Principle Quantum Number symbol

n

Principle Quantum Number

energy level or shells

Angular Quantum Number

subshells

Angular Quantum Number Symbol

l

Magnetic Quantum Number Symbol

ml

Electron Spin Quantum Number Symbol

ms

Electron Spin Quantum Number

spin of electron

Magnetic Quantum Number

orientation of electron

Magnetism

physical phenomenon formed by motion electron charges

Paramagnetism

there are unpaired electrons

Diamagnetism

all electrons are paired

Electronic Configuration

how electrons are distributed

Aufbau Principle

electrons will occupy lower energies first before going to the higher energies