ion55Iron-55 (55 Fe) is a radioactive isotope of iron with a nucleus containing 26 protons and 29 neutrons.It decays by electron capture to manganese-55 and this process has a half-life ofION55 Situs Slot Gacor Mudah Menang Bebas Ip. LOGIN. Share link. close button. ?utm_medium=social&utm_source=.