the nuclei of helium atoms: He2+
the number of protons in the nucleus of an atom, which determines which element it is. In a...
nomenclature (naming system) for organic compounds and homologous series.
the theory whereby molecules undergo effective collisions to form new molecules.
atoms in ratio 2:1 with bond angle of 1800 for example HCl.
the ratio of the amount of a pure compound to the amount of substance containing that compound...
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