In electron capture, a proton turns into a neutron and a neutrino is emitted. Is (without counting the mass difference between neutron and proton and the mass of the neutrino) the mass of the electron converted into energy in the form of gamma radiation?
In the table of nuclides, it shows that Ag 108 can go through either electron capture or beta- decay (though the branching ratio for electron capture decay is much lower). What determines that? Do nuclides try to maximize binding energy or binding energy per nucleon? And is decay into Palladium...