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Choose an element from period 3 of modern periodic table that matches the description given below in each instance. Give reason for your choice. a. It has a similar structure to diamond. b. It has same valency as Lithium. c. It has variable valency and is a member of the Oxygen family |
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Answer» a. Silicon Reason: Tetrahedral structure OR Tetravalency or Four valeny and catenation OR Covalent bonding like carbon b. Sodium Reason: It has 1 valence electron like Lithium c. Sulphur Reason: it forms oxides SO₂ and SO₃ |
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