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Home » (c) Name a non-metal having lustre (shining surface). (d) Name a non-metal which is extremely hard.
(c) Name a non-metal having lustre (shining surface). (d) Name a non-metal which is extremely hard.
CBSE | Chemistry | Class 10 | Exercise 1 | Lakhmir Singh | Metals and Non Metals
(c) Name a non-metal having lustre (shining surface). (d) Name a non-metal which is extremely hard.

(c) Iodine has a lustrous sheen to it. Iodine is a chemical element with atomic number 53 and the symbol I.

(d) Carbon allotrope diamonds are extremely hard. Carbon is a chemical element with the atomic number 6 and the symbol C. It’s nonmetallic and tetravalent, which means it has four electrons available for chemical bonding.

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