Why valency of nitrogen is 3?

Answer 1

Nitrogen has an electronegativity of 3.0. It exists in trivalent state in most compounds as it has an electronic configuration of 1s2;2s2;2p3. Because of this, nitrogen has a bond order of 3.

Answer 2

nitrogen has 1s2 2s2 2p3 electronic configuration... it still needs 3e' to get octet structure and become stable.. hence valency=3.

Answer 3

This is because Nitrogen atom has five electrons in its outer shell and is, therefore, trivalent in most compounds.

Answer 4

because it has five electrons in its last orbit due to which it needs only three more electrons to fulfill the octet rules.