Question

How will u find the valency of potassium and nitrogen ​

Answer 1

**potassium (K)___19
electronic configuration__2,8,8,1
It's valency is 1
coz in outermost orbit there is one electron.
**nitrogen(N)___7
electronic configuration__2,5
it's valency is 5
coz in outermost orbit there is 5 electron.

Answer 2

Hey mate!

Here's your answer!

The electronic configuration of Potassium is 2,8,8,1. Since there is 1 electron in the valence shell, the valency of Potassium is 1.

Similarly, the electronic configuration of Nitrogen is 2,5. Since there is 5 electrons in the valence shell, it cannot lose all the 5. So, it gains 3 electrons to attain octet. Hence, the valency of Nitrogen is 3.

Hope it helps :)