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Posted by
Mick Hartz

What is the central atom of CaCO3?

Dave Stickles  Follow

CaCO₃ is an ionic compound containing Ca²⁺ and CO₃²⁻ ions. There is no centrol atom for the whole compound.

The Lewis structure of CaCO₃ is shown below. Obviously, carbon atom is the central atom of CO₃²⁻ ion.

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