Quiz :)
I put like 50 points into this.
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Answer:
Explanation:
1. Same number of valence electrons.
2. Same number of electron shells.
7. Chlorine
8. Not sure.
Carbon: 2s2 2p2
Silicion: 3s² 3p²
Bromine: 3d¹⁰ 4s² 4p⁵