Quantum numbers and orbitals.

What is principal quantum number (n)

N=1-infinite

What is secondary quantum number (l)

L=0-(n-1)

L=0, what is designated sub level?

S

L=1, what is designated sub level?

P

L=2, what is designated sub level?

D

L=3, what is designated sub level?

F

What is magnetic quantum number (ml)

Ml= -l to +l

What is spin quantum number (ms)?

Ms= -1/2 or +1/2

How many electrons does each sub level hold?

S=2, p=6, d=10, f=14

What is Aufbae principle?

Orbitals are filled in order of increasing energy?

What is hund’s rule?

Orbitals must be half filled before e- are paired.

What is Pauli exclusion principle?

Each orbital can hold a max of 2 electrons which spin in opposite directions.

What are anions?

Negative ion formed by addition of e-, isoelectronic to nearest noble gas.

What are cations?

Positive ion formed by removing electrons, not necessarily isoelectronic to nearest noble gas.

When is d level most stable?

When it is full of half-filled