Osmium

Isotopes
Content created by REAL intelligence since 2016



(Incomplete)
IsotopeAbundanceT½ (s)Decay
161Os
162Os
163Os
164Os
165Os
166Os
167Os
168Os
169Os
170Os
171Os
172Os
173Os
174Os
175Os
176Os
177Os
178Os
179Os
180Os
181Os
182Os
183Os
184Os0.02 %
185Os
186Os1.59 %
187Os1.96 %Stable-
188Os13.24 %Stable-
189Os16.15 %Stable-
190Os26.26 %Stable-
191Os
192Os40.78 %Stable-
193Os
194Os
195Os
196Os
197Os
198Os
199Os
200Os
201Os
202Os
203Os
All data from [6].


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