Question

how many shell KLMN in atom​

Answer 1

Explanation:

Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons.

Answer 2

Hey mate ,

what you wanna say

There is a formula as 2n^2

where n is number of shell 1,2,3,4 respectively

this formula is used to tell how much atoms can be accomodated in the shell

Hope you find it helpful!!!