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a diagram that shows the electrons in the outermost occupied shell of an atom as dots or crosses.
a proton that forms a coÂordinate covalent bond with a water molecule H3O+
the introduction of halogen atoms into a compound by addition or substitution.
reactions in which an atom or group of atoms is replaced in a molecule by another atom or group...
the ratio of the amount of a pure compound to the amount of substance containing that compound...