Question

what is the valency of nitrogen

Answer 1

Atomic number of Nitrogen=7

An atom has orbital shells.There is a nucleas in the middle.Now as we move outwards the shells are named as K,L,M,N shells etc…

Now there is rule where the K shell can hold only 2 electrons whereas from now on the other shells L,M,N etc… can hold upto 8 shells.This is called Octet Rule.

This is actually the simple answer:-

Nitrogen Atomic Number=7

Arranging it now…

K Shell->2 electrons

L Shell->5 electrons (Though it can hold 8 in maximum here nitrogen has only 7 so the previous shell plus this one gives 7.So should stop here.)

Now the more electrons it can hold are 3 so that it becomes 8 (Full) which makes it stable.

So number of electrons to be gained =3

While losing 5 to make shell empty is difficult (Assume it’s lazy).So it gains 3 to become full rather than giving away 5 to become empty.

So valency=3 - (Minus)

Because electrons are negative so gaining them means the ion becoming negative.

Answer 2

The valency of Nitrogen is 3


hope this answer is correct. .