arlingraj arlingraj

07-09-2021
Chemistry

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

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Аноним Аноним

09-09-2021

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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