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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: Ann1234 on April 16, 2012, 06:22:27 PM

Title: Why is the B electron configuration in BF4^-1 1S2 2S1?
Post by: Ann1234 on April 16, 2012, 06:22:27 PM

hello, I am trying to understand this question but I am not getting an answer:

It says that "B electron configuration in BF4- is 1s2 2s1. Explain why"

I know the hybridization is sp3 in BF4^- and that B ground state is: 1s2 2s2 2p1

I have no clue why B configuration is 1s2 2s1 in BF4^-1.

Can someone give me a clue on how to explain this?

thanks  :)