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harkovskaia [24]
3 years ago
11

Please help! I don't understand electron configurations..

Chemistry
2 answers:
Eddi Din [679]3 years ago
8 0
1. [Ne] 3s² 3p² ( simple formula )

2. Na: 1 valence electron
F: 7 valence electrons
Ga: 3 valence electrons
Bi : 5 valence electrons
Lelechka [254]3 years ago
7 0
You want me to explain it as well?
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