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""_(4)^(7)Be captures a K-electron into its nucleus. What will be the mass number and atomic number of the nuclide formed?

Answer»

SOLUTION :When a nucleus captures a K-electron, a proton is converted to a NEUTRON. So the mass number does not change but the ATOMIC number REDUCES by 1 unit. Thus the mass number and atomic number of the resulting nuclide will be 7 and 3 respectively.


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