Cheatography
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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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