Answers

2016-04-06T06:23:57+05:30
The atoms of the same element having same atomic number but different mass number are called isotopes.
Example -hydrogen i.e protium,deuterium,tritium.
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2016-04-06T11:54:32+05:30
Isotopes are those element which have the same atomic no. But different mass
An example is an isotope of hydrogen is tritium that has mass of three but atomic no 1
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