Doubt from atomic structure

QQ6 @Shwetanshu_2018 and others

The bottom one.

I have some doubt in the answer

Plz explain.
@Shwetanshu_2018 @pratyaksh_2019

1 Like

Your answer seems correct to me .
Maybe there had been some misprinting and they just inverted the answers .

Also The answer according to answer key doesn’t seem to satisfy the last last line about relation between avg potential energy and avg kinetic energy