(a) What is element X?
(b) Name the allotrope Y?
(c) State whether allotrope Y is a good conductor or non-conductor of electricity.
(d) Name one use of allotrope Y (other than lubrication and pencil leads)
(e) Name two other allotropes of element X.
(b) Allotrope Y is graphite.
(c) Allotrope Y is a good conductor of electricity (due to the presence of free electron).
(d) Allotrope Y is used for making electrodes of cells.
(e) Diamond and Buckministerfullerence are allotropes of element X.