(a). State any three differences between the physical properties of metals and non-metals.
(b). Differentiate between metals and non-metals on the basis of their chemical properties.
(c). State three reasons (of which at least one must be chemical) for believing that sodium is a metal.
(d). State three reasons (of which at least one must be chemical) for believing that sulphur is a non-metal.
(e). Which non-metal has been placed in the reactivity series of metals.

Explanation

a) The differences in Physical Properties of Metal & Non-metals


b) The differences in Chemical Properties of Metal & Non-metals

c) Sodium is a metal because it is solid, conducts electricity, forms basic oxides.
d) Sulphur is a non-metal because it is Brittle, non-ductile, Non-conductor of electricity, forms acidic oxides
e) Hydrogen