What is the rule for naming compounds made from two elements?
1. The first element keeps its name the same.
2. The second element gets the suffix -ide added to the end.
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Name the compound formed by sodium and chlorine.
The compound is named sodium chloride.
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What happens to the name of iodine when it forms a compound with another element?
Iodine becomes iodide.
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Name the compound formed by copper, sulfur, and four oxygen atoms.
The compound is named copper sulfate.
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Name the compound formed by sodium, carbon, and three oxygen atoms.
The compound is named sodium carbonate.
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Name the compound formed by ammonium, nitrogen, and three oxygen atoms.
The compound is named ammonium nitrate.
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Explain why a hydrogen molecule is an element not a compound.
Hydrogen exists as a pair of the same types of atoms, so it is still an elements.
Compounds consist of more than one type of atom.
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