How many electrons in calcium oxide?

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Calcium oxide - CaO
Ca: 20 electrons
Oxygen: 8 electrons
Total: 28
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How do you make an electron dot diagram of Calcium Oxide?

Calcium has 2 valence electrons while oxygen has 6 valenceelectrons. When adding calcium and oxygen together, they formcalcium oxide or CaO, and calciums 2 valence electrons j