Key Area 2 Flashcards
1
Q
What is Aufbau’s Principle?
A
Electrons fill orbitals in order of increasing energy
2
Q
What is Hund’s Rule?
A
Electrons fill degenerate orbitals singly with parallel spins before pairing occurs
3
Q
What is Pauli’s Exclusion Principle?
A
No 2 electrons in the one atom can have the same set of four quantum numbers
4
Q
What does degenerate mean?
A
Of equal energy
5
Q
What is the orbital box notation order?
A
1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 4d¹⁰
