arlingraj
Answered

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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.... ​

Sagot :

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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