Amongest Be, B, Mg and Al, the second ionization potential is maximum for

Options

A. B
B. Be
C. Mg
D. Al

Answer

A

Explanation

The electronic configuration for boron is `2s^2 2p^1`
Configuration of `B^(o+)` is 2s^2` .
So, it is difficult to remove `2^(nd) e^(-)`.