Question
Ca (Valency 2) & O (Valency 2)
✓
Answer
Step 1: Write the symbols of the constituent elements.
Step 2: Write the valency below the respective elements.
Step 3: Cross multiply the valencies.
The formula: $Ca _2 O _2$
Divide the formula by suitable number ' 2 '.
The molecular formula: CaO.
Step 2: Write the valency below the respective elements.
Step 3: Cross multiply the valencies.
The formula: $Ca _2 O _2$
Divide the formula by suitable number ' 2 '.
The molecular formula: CaO.
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