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Periodic TableAtomic Number | Proton # | Atomic Mass | Proton + Neutron |
Periodic Table GroupsAlkali Metals | Li, Na, K, Rb, Cs, Fr | Halogens | F, Cl, Br, I, At | Metals | Rep Metals | Noble Gas |
Electron ConfigurationsShort 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-HandStep 1: | Locate Element | Step 2: | Find Noble Gas comes before & Bracket | Step 3: | Count Normally from there |
| | Determine Atomic WeightThroughout | Sig Fig | Step 1 | Mass X Abundance | Step 2 | Repeat Step 1 | Step 3 | Add both |
State Hands RuleState Hand's Rule | Electron Orbital Fill | Fill | Lowest First | Arrows | opposite direction |
Principle EnergyFirst 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 AffinityElectron Affinity | Chance of picking up Electron |
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