Question

What is the maximum number of electrons which can be accommodated in the (i) N shell (ii) 6th Orbit?

Answer 1

The maximum number of electrons in a shell is given by $2{\mathrm{n}}^2.$

where 'n' is the principal quantum number.

Shell and ‘n’ value	Maximum electrons in the electron configuration
K shell, n=1	2 ✕ 12 = 2
L shell, n=2	2 ✕ 22 = 8
M shell, n=3	2 ✕ 32 = 18
N shell, n=4	2 ✕ 42 = 32

(i) For the N shell: the principal quantum number(n) is 4.

The maximum number of electrons in the N shell is given by $2\times {\left(4\right)}^2=2\times 16=32.$

(ii) For the 6th orbit: the principal quantum number(n) is 6.

The maximum number of electrons in the 6th orbit is given by $2\times {\left(6\right)}^2=2\times 36=72.$