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Refer to illustration 5.10, the energy r...

Refer to illustration `5.10`, the energy released by the `alpha` - decay of `._(92)^(238) U` is found to be` 4.3 MeV`. Since this energy is carried away as kinetic energy of the recoiling `._(90)^(234)Th`. nucleus and the `alpha`- particles, it follows that `KE_(Th) +KE_(alpha )=4.3 MeV`. However, `KE_Th ` and `KE_alpha` are not equal. Which particle carries away more kinetic energy, the `overset(234)(90)Th` nucleus or the `alpha`- particle? .

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