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Naming covalent compounds - 命名共价键化合物

1. the first element in the formula is named first, using the full element name.

2. the second element is named as if it were an anion.

3. prefixes are used to denote the numbers of atoms present. These prefixes are shown in the left table.

4. The prefix mono- is never used for naming the first element. For example, CO is called carbon monoxide, not monocarbon monoxide.

Example practice:

N2O: Dinitrogen monoxide

NO: Nitrogen monoxide

NO2: Nitrogen dioxide

PCl5: Phosphorus pentachloride

SO2: Sulfur dioxide

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