what are molecules?
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A molecule is the smallest particle in a chemical element. theses are made up of atoms that are held together by chemical bonds. ... For example, O2 is the oxygen..
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A molecule is said to contain the same or different atoms in a quantity of two or more than two. A molecule consists of various atoms held together by chemical bonds between the atoms. The bonding between different or same atoms is a result of the valence electrons present in the atoms.
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