In `NO_(3)^(-)` ion, the number of bond pairs and lone pairs of electrons on nitrogen atom are :

Options

A. 2,2
B. 3,1
C. 1,3
D. 4,0

Answer

D

Explanation

In , atom N= number of valence electrons = 5
Due to the presence of one negative charge, number of valence electrons ` = 5 + 1 = 6` one O - atom forms two bond ( = bond) and two O-atom shared with two electros of N - atom
Thus, 3 O-atoms shared with 8 electrons of N-atom.
`:.` Number of bond pairs (or shared pairs) = 4
Number of lone pairs =0.