Question

How does the valency vary in a period?
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Answer 1

Answer:

In the periodic table period, the valency of an element first increases and then decreases. ... The valency varies from +1 to +4 or -4 through these 8 elements, in the first 4 elements of these 8 elements.

Answer 2

Answer:

In the periodic table period, the valency of an element first increases and then decreases.

The valency varies from +1 to +4 or -4 through these 8 elements, in the first 4 elements of these 8 elements.