Question

match the elements A8, B14, C15 and D19 with each of the following:
i) a solid non mental with valency 3
ii) a gas if valency 2
iii) a metal with one electron in N shell
iv) write the formula of the compound formed A and D

Answer 1

Explanation:

i) C15

ii)A8

iii)D

iv)AD2

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