Question

The maximum number of electrons that can be accommodated in the $M^{th}$ shell is

• A. 2
• B. 8
• C. 18
• D. 32

Answer 1

Answer: (C)

18

Answer 2

For $M^{th}$ shell, $n = 3;$ so maximum no. of electrons in $M^{th}$ shell $= 2n^{2} = 2 \times 3^{2} = 18$.