Question

# The maximum number of electrons in a shell can be calculated by the formula _______.n2n2n2n2

Solution

## The correct option is D 2n2The maximum number of electrons present in a shell is given by the formula 2n2, where ‘n’ is always natural number. n represents the principal quantum number. It represents the size and the energy of the shell.  Hence, the maximum number of electrons in different shells are as follows: 1. First orbit or K-shell (n=1)  =  2x12 = 2 2. Second orbit or L-shell (n=2)  = 2x22 = 8 and so on.

Suggest corrections