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How is a molecule?

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Anonymous

9y ago
Updated: 8/16/2019

A molecule is a group of atoms joined together by covalent bonds.

If it is a molecule of element , atoms of the same element combine in a definite number . for example: a chlorine molecule Cl2, an oxygen molecule O2, etc.

If it is a molecule of a compound , atoms of two or more atoms of different elements combine in a definite ratio. for example: H2O, water, or C6H12O6, glucose.

It was formerly defined as the smallest particle of a substance that can exist independently, but in modern usage it is not applied to ionic compounds such as calcium oxide, which are giant assemblies of ions.

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Wiki User

9y ago

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