Chem Vocab- Electron Configuration & Quantum Numbers

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Ground State

the lowest energy state

Excited State

A state in which an atom has more energy than it does at its ground state

Pauli Exclusion Principle

No more than 2 electrons can be placed in a single orbital

Hund's Rule

Electrons entering a set of equal-energy orbitals will fill it's single boxes before any electrons are paired

Aufbau Principle

electrons fill orbitals that have the lowest energy first

Noble Gas Configuration

Ex: Mg=[Ne]3s^2

In Quantum numbers, N=?

The Principle quantum number: n=1 is the 1st row on the periodic table

In Quantum numbers, L=?

The Angular momentum quantum number: L=2 means it is a d-orbital

In Quantum numbers, M=?

The Magnetic quantum number.

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