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Chemistry 111 Quiz 1 Cheat Sheet by

MATH!!!!

Periodic Table

Atomic Number
Proton #
Atomic Mass
Proton + Neutron

Periodic Table Groups

Alkali Metals
Li, Na, K, Rb, Cs, Fr
Halogens
F, Cl, Br, I, At
Metals
Rep Metals
Noble Gas

Electron Config­ura­tions

Short Hand
Last Config­uration (Energ­yLe­vel­)(O­rbi­tal­)(O­rbital Shape)
S
2
P
6
D
10
F
14
 
1S
 
2S 2P
 
3S 3P 3D
 
4S 4P 4D 4F
 
5S 5P 5D 5F
 
6S 6P 6D
 
7S 7P
Hint: Group 1-2 & Helium
= S
Hint: Group 3-12
= D
Hint: Group 13-18
= P
Hint: Bottom 2 Rows
= F
D=
1# below S
F=
2# below S
 
D=-1
F=-2

Electron Config­uration Short-Hand

Step 1:
Locate Element
Step 2:
Find Noble Gas comes before & Bracket
Step 3:
Count Normally from there
 

Determine Atomic Weight

Throughout
Sig Fig
Step 1
Mass X Abundance
Step 2
Repeat Step 1
Step 3
Add both

State Hands Rule

State Hand's Rule
Electron Orbital Fill
Fill
Lowest First
Arrows
opposite direction

Principle Energy

First Level
S: Max 2
Second Level
S,P: 2+6= Max 8
Third Level
S,P,D: 2+6+ 10 = Max 18
Fourth Level
S,P,D, F: 2+6+ 10 + 14= Max 32

Electron Affinity

Electron Affinity
Chance of picking up Electron
                       

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