Question

what is the valency of calcium? With sign +,-​

Answer 1

Answer:

2

Explanation:

valency have no sign The + and - sign is oxidation number

in oxidation number calcium is + sign .

Answer 2

ANSWER

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valency of calcium is :2

MORE POINTS ON VALENCY

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• valency is combing power of an element.
• valency of elements to the elements whose atomic number is 1-18 is followed by a formula 2 n^2 where n is number of orbit.