These may still reach a lower energy state, by the equivalent process of electron capture and neutrino emission.

This is also evident from phenomena like electron capture.

The analyte concentration is thus proportional to the degree of electron capture.

This involves electron capture or positron decay of potassium-40 to argon-40.

Alvarez went on to study electron capture in gallium-67 and other nuclides.

I decays by electron capture with a half-life of 13.22 hours.

Double electron capture is a decay mode of atomic nucleus.

It decays by electron capture to manganese-55 and this process has a half-life of 2.737 years.

Iron-55 decays via electron capture to manganese-55 with a half-life of 2.737 years.

Its half-life is around 59 days and it decays by electron capture to an excited state of tellurium-125.