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kenny6666 [7]
3 years ago
9

If an atom has 7 valence electrons, how many electrons does it need to gain to achieve a stable electron configuration? electron

s
Biology
2 answers:
rjkz [21]3 years ago
6 0
An atom with 7 valence electrons would need only one more electron to fill that outer shell and make it stable (whereit doesn't want to react with anything anymore)
Lana71 [14]3 years ago
3 0
It takes one more electron because it needs 8 to make it complete

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