Question

How many electrons can be accommodated in 1st shell ?

• A. 1
• B. 2
• C. 3
• D. 8

Answer 1

The correct option is B

2

The explanation for the correct answer

Option B

Maximum no of electrons can be accommodated in a particular shell of an atom of element =$2{\mathrm{n}}^2$, where n is the number of shells.

For 1st shell ( n= 1) hence the maximum number of electrons it can accommodate = $2*1^2$ = $2$

Conclusion: Hence Option B is correct.