Question

State three reasons (of which at least one must be chemical) for believing that sulphur is a non-metal.

Answer 1

(i)  Sulphur is not lustrous, which shows that it is a non-metal.
(ii)  Sulphur is a non-sonorous material, which shows that it is a non-metal.
(iii) Sulphur reacts with oxygen to form sulphur dioxide that is acidic in nature. This shows that it is a non-metal.