Question

Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and coloured. Name a non-metal other than carbon which shows allotropy.

Answer 1

Allotropy:-

1. It is defined as the existence of two or more two different forms of chemical elements.
2. These are basically the different structural modifications or changes.
3. The atoms of the elements are also bonded together but in a different and changed manner.
4. Sulphur and phosphorus are the two non-metals.
5. In nature, there are three different forms of Phosphorus (White Phosphorus, Red Phosphorus, and Black Phosphorus).
6. Sulphur which is also a non-metal mostly exists in the two allotropes, Rhombic and Monoclinic among which the most stable one is the Rhombic Sulphur.

Therefore, sulphur and phosphorus are non-metals other than carbon which shows allotropy.