Question

What are the difference between electron gain enthalphy and ionization energy towards 2 period elements and IIA and VA group elements.

Answer 1

$IE=$Group$II<$Group$V$

$EA=$Group$II<$Group$V$

Since$,$ Group$II$ has less $Z_{eff},$ hence looses $e^{-}$ easily than Group$V,$ non-metals has more $e^{-}$ affinity than metals due to smaller size$,$ high $Z_{eff}$ etc than metals$.$