Question

Potassium
K
Calcium
Ca
2 pls tell me how to find the valancy ​

Answer 1

Answer:

To find the valency you first have to learn distribution of electrons in shells.

The no. of electrons in the outermost shell is the valency of that element.

The second formula for elements having more than 4 electrons in the outermost shell is

valency= 8 - electrons in the Valence shell ( outermost shell)