Asked by IRA

How many valence electrons does each of the following species contain?

BN =

HF =

OH[1-] =

CN[1-] =

Answers

Answered by DrBob222
I don't understand the question.
Answered by IRA
@DrBob22

I think the question is asking how many valence electrons do each of the compounds have when they're together

here are the answers I got:
BN = boron has 3 valence electrons, nitrogen has 5, so together they have 8

HF= 1 for hydrogen, 7 for Flourine, so together they have 8

OH[-1] = 6 for oxygen, 1 for hydrogen, then an extra electron bc of the -1 ion, so 7

CN[1-] = carbon has 4, Nitrogen has 5, an 1 from the ion adds up to 10 valence electron

Does my math look right to you?
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