Chemistry, asked by sreeshwetachoudhury, 2 months ago

Two elements have atomic numbers 12 and 17 respectively. Find their valencies. (2)
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Answers

Answered by ar043090
9

Atomic no. Valency

12-Magnesium. +2

17-Chlorine. -1

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Answered by Jeetray9
2

Explanation:

Valency is the measure of the combining capacity of atoms or molecules. Therefore, it is the capacity of an atom of a single element to react and combine with particular numbers of atoms of another element

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