Question

If an atom of nitrogen binds with three hydrogen atoms to form a molecule of ammonia, how many lone pairs of electrons does nitrogen have?
A.
one
B.
three
C.
four
D.
five

Answer 1

Answer:

option (b) is correct

three

Answer 2

Answer:

There are 4 electron pairs around the nitrogen atom: 3×N−H bonds, and one nitrogen-centred lone pair.