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In the disintegration of a radioactive element, alpha and beta-particles are evolved from the nucleus: ._(0)^(1)n to ._(1)^(1)H + ._(-1)^(0)e + Antineutrino + Energy 4 ._(1)^(1)H to ._(2)^(4)He + 2 ._(+1)^(0)e + 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 order hand, emission of a beta-particle yields an element having atomic number raised by one. soddy and Fajan proposed that the daughter nuclide may occupy different positions in the periodic talbe. Select the correct statements amont the following: |
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Answer» EMISSION of a `beta` PARTICLE results into ISOBAR of parent element |
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