Question

Match the following.
Element. Valency
a. Magnesium (i) 4
b. Nitrogen (ii) 2
c. Lithium (iii)3
d. Carbon. (iv)1
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Answer 1

Answer:

a. - ii, b. - iii, c. - iv, d. - i

Explanation:

element   -   Valency

Magnesium     -    2

Nitrogen    -   3

Lithium     -    1

Carbon     -    4