Use the periodic table to complete these charts. Complete the following charts by counting the atoms in the compounds.



Sodium Oxide - Na2O

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Calcium Chloride - CaCl2

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Potassium Sulphate K2SO4

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Aluminum Iodide - AlI3

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NH 4C2 H3O2

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2(NH4)2CO3

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Pb(NO3)4

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3(PO4)2

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