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Lelechka [254]
2 years ago
11

Please help me I will give you the brain thing and extra points. image below

Biology
1 answer:
Sphinxa [80]2 years ago
8 0
The second on :” the number of valence electrons stays the same” because a valence electron is the number of electrons on the outer shell of the atom and if it’s in group one then the outer shell of any element will have one electron on its outer shell
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