why are there 2 lone pairs in NH2-?

1 ⤊

why are there 2 lone pairs in NH2-?

2006-10-15 11:25:42 · 2 answers · asked by Anonymous in Education & Reference ➔ Other - Education

2 answers

N contributes 5 valence electons
each H contributes 1
-1 ionic charge, so 8 total valence electrons

2 valence electrons go into each N-H bond, which leaves 4 remaining. Hence, 2 lone pairs.

2006-10-15 11:29:34 · answer #1 · answered by Anonymous · 1⤊ 0⤋

HUH?&^%(*@#!%$

2006-10-15 11:37:44 · answer #2 · answered by knownothing 4 · 0⤊ 1⤋