Question

CT jas completely filled K and L shells completely ,explain​

Answer 1

Answer:

Atomic number of chlorine ( Cl ) = 17. And Cl- has 8 electrons in each K and L shells. Therefore the K and L shells of the Cl- are completely filled.

Explanation:

Atomic number of chlorine is 17

So the configuration is 2,8,7

The first electron shell can hold upto two electrons. The second shell and third can hold up-to eight electrons. Since it has 7 valance electrons, the last number is 7. Therefore the electronic configuration is 2,8,7. So it has completely filled K and L shell