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Chemistry

Answered

The chemical formula of calcium oxide is Cao. What is the valency of calcium?

If you answer it, I'll give you 100 points and mark you as the brainliest....

Answer :

Анонимgo Анонимgo

Lets look out the Electronic configuration of Calcium(Ca)

Z=20

EC:-

[tex]\\ \rm\longmapsto 1s^22s^22p^63s^2[/tex]

Valency is 2

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