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Alex17521 [72]
3 years ago
6

What two elements do not need eight valence electrons to stay stable?

Chemistry
1 answer:
coldgirl [10]3 years ago
7 0
Hydrogen and helium because they only have one electron shell and it only holds up to two electrons in it.
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So the only one of the answer choices that doesn't equal 12.5 mm is 0.00125 hm, since 12.5 mm is <span>0.000125 hm.

Answer:
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