Question

write three differences between metals and nonmetals on the basis of chemical properties.

Answer 1

1. Metals have valency of 1, 2 or 3 whereas non-metals have valency of 5, 6, 7, 4

2. Metals are electropositive in nature i.e. they lose electrons whereas non-metals are electronegative i.e. they gain electrons

3. Metals form basic oxides whereas non-metals form acidic or neutral oxides

4. Metals form electrovalent chlorides whereas non-metals form covalent chlorides

5. Metals on electrolysis discharge as cations at cathode whereas non-metals on electrolysis discharge as anions at anodes