Question & Answer: Consider the electron capture reaction of an electron by argon, where both argon atom and…..

Consider the electron capture reaction of an electron by argon, where both argon atom and electron are assumed to be at rest, which yields a chlorine atom and a neutrino: 

The atomic masses (which include the bound electrons) are: Ar = 36.966776 u, Cl = 36.965903 u, the electron mass is 5.485799E?4 u and you can take m_vec² = 0 eV. The atomic mass unit u = 931.5 MeV/c². What are the final kinetic energies of the neutrino (?e) and the chlorine atom in eV?