Electron configuration definitions

Question 1

Core electrons

Answer 1

Core electrons are the inner electrons that are not involved in bonding

Question 2

Valence electrons

Answer 2

Valence electrons are the outmost electrons of an atom

Question 3

Aufbau Principle

Answer 3

Electrons occupy the lowest energy orbitals first

Question 4

Pauli Exclusion Principle

Answer 4

An orbital can hold a maximum of two electrons with opposite spins

Question 5

Hund’s Rule

Answer 5

Electrons will singly occupy orbitals before pairing up