Afzal
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Subject : Isotopes (chemistry xii) ISOTOPES:- Atoms of the same elements having same atomic number but different mass numbers are called isotopes.ISOTOPES OF HYDROGEN:- Isotopes of hydrogen are given special names while isotopes of other elements are not given any special name. There are three isotopes of hydrogen,namely: i)Protium ii)Deuterium iii)Tritium.
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