Question

What is maximum number of electrons that can be accommodated in an atom in which the highest principal quantum number value is 4.

• A. 36
• B. 32
• C. 26
• D. 56

Answer 1

Answer: (B)

32

The maximum number of electrons that can be accommodated is given by formula ---

$2n^2$

where n = principal quantum number.

Therefore, the maximum number of electrons that can be accommodated in

$n=4$ is $=2n^2$ = $2\times 4^2$ = $2\times 16$ = $32$ $electrons$

So, (B) option is correct