Question

Among be and fe which have greater tendency to los electrons

Answer 1

Be:- Beryllium.
Fe:- Iron

Electronic configuration

Be:-
$1 {s}^{2} 2 {s}^{2}$
Fe:-
$1 {s}^{2} 2 {s}^{2} 2 {p}^{6} 3{s}^{2} 3 {p}^{6} 4 {s}^{2} 3 {d}^{6}$


➡️It is easy to take out electrons from d orbital in comparison to s orbital.

Hence Fe has greater tendency to loose electrons.