Extra credit for unknown elements
Electron and Noble Gas configuration
1. Silicon:
a. 1s2 2s2 2p6 3s2 3p6
b. [Ne] 3s2 3p6
2. Fluorine:
a. 1s2 2s2 2p5
b. [He] 2s2 2p5
3. Rubidium:
a. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1
b. [Kr] 5s1
4. Krypton:
a. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
b. [Ar] 4s2 3d10 4p6
5. Gold:
a. 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s1
b. [Xe] 6s1 4f14 5d10
6. Strontium:
a. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
b. [Kr] 5s2
7. Germanium:
a. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2
b. [Ar] 4s2 3d10 4p2
8. Magnesium:
a. 1s2 2s2 2p6 3s1
b. [Ne] 3s1
9. Thallium:
a. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p1
b. [Xe] 6s2 4f14 5d10 6p1