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    Physics: Gamma decay

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    Question: A hypothetical atom with negligible kinetic energy has a mass of 166 amu. It undergoes a gamma decay. The remaining atom has atomic mass which is less than that of the original by .0000135 amu. What is the kinetic energy and/or wavelength (whichever is more appropriate) of the emitted particle, assuming that the kinetic energy of the remaining atom is negligible? How much energy would be released by the decay of a mole of these atoms? Note that the mass of a helium nucleus is about 4.001 amu and the mass of an electron about .00055 amu, where an amu is approximately 1.66 * 10^-27 kg?

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