ICSE Class 10 Chemistry 2020 Solved Paper

Draw the electron dot diagram for the compounds given below. Represent the electrons by (.) and ( $x$ ) in the diagram.
[Atomic No. :

{\Ca}=20, {\O}=8, {\Cl}=17, {\H}=1

]

Question : 43 of 86

Marks: +1, -0

Calcium oxide

Solution:

Calcium oxide

- {\CaO}

\; {\Ca}=20=2,8,8,2

\; {\O}=8=2,6

{\Ca}-2 e^{-} → {\Ca}^{2+}

{\O}+2 e^{-} → {\O}^{2-}

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