Answers

2016-04-02T09:46:33+05:30
An isotope refers to atoms of an element which differ only in the number of neutrons they have.
example:
an atom with 6 protons in its nucleus is called a carbon atom.

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2016-04-02T09:51:35+05:30
isotopes are the atoms with same atomic number but different atomic mass
example :-  hydrogen
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