What is the maximum number of electrons that can be accommodated in th

What is the maximum number of electrons that can be accommodated in the M shell of an atom?

[amp_mcq option1=”32″ option2=”18″ option3=”8″ option4=”2″ correct=”option2″]

This question was previously asked in

UPSC Geoscientist – 2022

The correct answer is 18.

The maximum number of electrons that can be accommodated in an electron shell is given by the formula 2n², where ‘n’ is the principal quantum number of the shell.

Electron shells are denoted by K, L, M, N, … corresponding to principal quantum numbers n = 1, 2, 3, 4, … respectively. For the M shell, n=3. Therefore, the maximum number of electrons in the M shell is 2 * (3)² = 2 * 9 = 18.

More similar MCQ questions for Exam preparation:-