Question

what are covalent bonds ?

Answer 1

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.

Answer 2

covalent bond is formed between two non metal atoms of comparable electronegative in the formation of covalent bond equal number of electrons are there between the two consecrated item the number of electrons contributed by each atom depends upon its requirement for gaining stability i.e nearest noble gas like structure these shared electrons become common property of the both atoms and thus count towards the stability of both the atom.