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The energy spectrum of beta - particle [...

The energy spectrum of `beta` - particle [number `N(E)` as a function of `beta` - energy E] emitted from a radioactive source is

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In the disintegration of a radioactive element, alpha - and beta -particles are evolved from the nucleus. ._(0)n^(1) rarr ._(1)H^(1) + ._(-1)e^(0) + Antineutrino + Energy 4 ._(1)H^(1) rarr ._(2)He^(4) + 2 ._(+1)e^(0) + Energy Then, emission of these particles changes the nuclear configuration and results into a daughter nuclide. Emission of an alpha -particles results into a daughter element having atomic number lowered by 2 and mass number by 4, on the other hand, emission of a beta -particle yields an element having atomic number raised by 1. How many alpha - and beta -particle should be emitted from a radioactive nuclide so that an isobar is formed?

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