Electron Configuration & Quantum Numbers Exam

Question 1

Order of sub-levels?

Answer 1

s, p, d, f

Question 2

s

Answer 2

1 orbital
2 electrons max
1-7

Question 3

p

Answer 3

3 orbitals
6 electrons max
2-6

Question 4

d

Answer 4

5 orbitals
10 electrons max
3-6

Question 5

f

Answer 5

7 orbitals
14 electrons max
4-5

Question 6

Order of Quantum Numbers (qn)

Answer 6

n, l, ml, ms

Question 7

n

Answer 7

principal qn
energy level of electron
(big number)
1st

Question 8

l

Answer 8

angular momentum qn
shape of orbitals
(s=0, p=1, d=2, f=3)
2nd

Question 9

ml

Answer 9

magnetic qn
direction or orientation of an orbital
(pyramid thing)
3rd

Question 10

ms

Answer 10

spin qn
direction of spin of an electron
(up and down, 1/2 if up, -1/2 if down)
4th

Question 11

Hund’s Rules

Answer 11

Every orbital in a sub-shell is always singly occupied with one electron before any one orbital is doubly occupies, and all electrons in singly occupies orbitals have the same spin.

Question 12

Pauli’s Exclusion Principle

Answer 12

Two electrons cannot share the same exact level, sub-level, orbital, and have the same spin.

Question 13

Aufbau Principle

Answer 13

Electrons always fill sub-levels by energy order, not energy level order.