Write one example of each of the following: (a) A metal and a non-metal which are liquids at room temperature. (b) A metal which is very soft and a non-metal which is very hard. (c) A metal which has very low melting point and a non-metal which has very high melting point.

(a) Mercury (a metal) is a liquid at room temperature’
Bromine (a non-metal) is a liquid at room temperature’
(b) Sodium (a metal) is very soft.
Diamond (a form of carbon) is very hard.
(c) Gallium has a very low melting point’
Diamond (a non-metal) has a very high melting point.