Question

What can be the maximum number of electrons in a shell, if principal quantum number is \( n \)?

• A. \( n \)
• B. \( n^2 \)
• C. \( 2n^2 \)
• D. \( 3n^3 \)

Hint:

The maximum number of electrons in any shell increases with the square of the principal quantum number, multiplied by 2.

Answer 1

The Correct Option is C

The maximum number of electrons in a shell is given by the formula: \[ \text{Maximum number of electrons} = 2n^2 \] where \( n \) is the principal quantum number. Thus, the correct option is (c) \( 2n^2 \).