Question

1) "Elements that lose electrons to form compound are called metal" what is the meaning of loses electrons. 2)"Elements that gains electrons to form compound are called non - metal" what is the meaning of gains electrons.

Answer 1

Electropositive nature of an element is called losing of electron. Metals have the tendency to lose their electron as they are electropositive. They give up its electron to attain the stability. For ex., Sodium

Electronegative nature of an element is called gaining of electron. Non Metals have the tendency to gain their electron as they are electronegative. They take up electron to attain the stability. For ex., Chlorine