Group Names
Period Trends
Group Trends
Quantum Numbers
Electron Configuratoin
100
Na
Alkali Metals
100
Which element has a larger atomic radius:

K vs Ga

K
100
Which has a larger atomic radius:

Mg vs Ca

Ca
100
Which quantum number determines the energy level of the orbital?
principle quantum number: n
100
The rule requires you to fill electrons with the lowest energy first.
Aufbau Principle
200
Ne
Noble Gases
200
Which element favors adding an electron:

Al vs Cl


Cl
200
Which ion has a larger atomic radius

Cl- vs Cl

Cl-
200
Which quantum number determines the shape of the orbital sublevel?
Angular momentum: l
200
This rule requires all orbitals to be filled with one electron (spin up) before filling with a spin down
Hund's Rule
300
I
Halogens
300
Which element favors losing an electron?

Rb vs Sn

Rb
300
Which element has a lower electronegativity:

I vs F

I
300
The values of l for the s, p, d, and f orbitals are:
0 for s

1 for p

2 for d

3 for f


300

The configuration 1s2 2s2 2sp7 breaks this rule?

Pauli Exclusion Principle
400
Ca
Alkaline Earth Metals
400
Rank the following by increasing electronegativity:

Mg, Si, Na, P

Na<Mg<Si<p
400
Which has a higher ionization energy?

B vs In

B
400
The total number of electrons allowed in a p orbital
6
400
The ground state electron configuration for Ca
1s2 2s2 2p6 3s2 3p 4s2
500
As
Pnictonides
500
Rank the following in order of decreasing ionization energy:

C, N, Li, Be

N<C<Be<Li
500
Rank the following in order of increasing electronegativity:

Al, B, Ga, In, Ti

Ti<In<Ga<Al<B
500
The total number of orbitals allowed for energy level 2
4
500
The noble gas configuration for Sb
[Kr]5s2 4d10 5p3
M
e
n
u