Answers

2014-12-10T20:35:12+05:30
Two or more forms of same element with same number of protons but differ in number of neutrons are called isotopes.. they will not differ in chemical properties but differ in atomic mass.
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2014-12-10T20:35:30+05:30
AN ATOM OF THE SAME ELEMENTS WHICH HAVE SAME NUMBER OF PROTONS BUT DIFFERENT NUMBER OF NEUTRONS INSIDE THEIR NUCLEI ARE CALLED ISOTOPES.

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