Answers

2014-03-09T20:49:11+05:30
An ion is an atom. Though, ions have a certain charge (+ or -), which is base over we can say  that they have random numbers of protons and electrons. An atom with no charge (neutral) has the same  numbers of protons and electrons.
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2014-03-09T20:51:06+05:30
An atom is a neutral part of a molecule, ie. its electrons are equal to the protons whereas an ion is an atom which has lost or gained electrons
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