The indium isotopes lighter than 115 In predominantly decay through electron capture or positron emission to form cadmium isotopes, while the other indium isotopes from 115 In and greater predominantly decay through beta minus decay to form tin isotopes.
12.
For example, during beta minus decay, a down quark within a neutron is changed into an up quark, thus converting the neutron to a proton and resulting in the emission of an electron and an electron antineutrino.
