Question: A 238/92U nucleus emits an particle with kinetic energy = 4.20MeV. (a) What is the daughter nucleus, and (b) What is the approximate atomic mass

A 238/92U nucleus emits an α particle with kinetic energy = 4.20MeV.
(a) What is the daughter nucleus, and
(b) What is the approximate atomic mass (in u) of the daughter atom? Ignore recoil of the daughter nucleus.

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