Calcium

Isotopes


(Incomplete)
IsotopeAbundanceT½ (s)Decay
34Ca
35Ca
36Ca
37Ca
38Ca
39Ca
40Ca96.941 %Stable-
41Ca
42Ca0.647 %Stable-
43Ca0.135 %Stable-
44Ca2.086 %Stable-
45Ca
46Ca0.004 %Stable-
47Ca
48Ca
49Ca
50Ca
51Ca
52Ca
53Ca
54Ca
55Ca
56Ca
57Ca
58Ca
All data from [8].


α: alpha particle emission (4He nucleus)
β+: emission of an anti-electron and a neutrino. A proton inside the nucleus is transformed into a neutron
β-: emission of an electron and an anti-neutrino. A neutron inside the nucleus is transformed into a proton
ec: electron capture: capture of one orbital electron by the the nucleus. A proton inside the nucleus is transformed into a neutron plus a neutrino
SF: Spontaneous Fission: a nucleus spontaneously splits into fragment nuclides
IT: Isomeric Transition: a level above the ground state decays via electromagnetic process
n: neutron emission
p: proton emission
β- n (and similar): beta- decay followed by delayed neutron emission