Question

why carbon form bond by sharing not gaining or losing electrons???​

Answer 1

Explanation:

Losing or gaining 4 electrons is considered extremely unstable for the atom. Therefore carbon resorts to sharing the electrons and thus forming stable bonds

Answer 2

Answer:

Carbon has four electrons in it's valence, and possess the property of catenation. It forms covalent bonds, and hence, leads to the formation of different elements. It cannot lose or gain electrons, due to it's tetravalency.