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Categorize the following into elements and compounds with their respective symbols and atomicity:
Example:
1. Element - Argon :: \(Ar\) :: \(1\)
2. Compound - Copper sulphate :: \(CuSO_4\) :: \(6\)
Answer variants:
Carbon dioxide
\(12\)
Helium
\(AL_2O_4\)
\(He\)
\(CO_2\)
\(3\)
\(1\)
1. Element - :: ::
2. Compound - :: ::
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