Question

The maximum number of electrons that can be accommodated in a shell is given by the formula .

• A. ${\text{n}}^2$
• B. ${\text{2n}}^2$
• C. ${\text{n}}^2$+1

Answer 1

The correct option is B ${\text{2n}}^2$

The electrons revolve around the nucleus in discrete shells. The shells are called energy levels. The maximum number of electrons the nth shell of an element can accomodate is given by the formula ${\text{2n}}^2$, where $\text{n}$ is the energy level (n =1,2,3...).