an atom has an atomic number is 90 and mass number is 232 how many (i)protons dose it contain (ii) how many netrouns and eletrons it contain (iii) what would be the atomic no of isotopes of this atom
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an atom has an atomic number is 90 and mass number is 232 how many (i)protons dose it contain (ii) how many netrouns and eletrons it contain (iii) what would be the atomic no of isotopes of this atom
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