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Isotopes of Fermium (click to see decay chain):
242
Fm
243
Fm
244
Fm
245
Fm
246
Fm
247
Fm
248
Fm
249
Fm
250
Fm
251
Fm
252
Fm
253
Fm
254
Fm
255
Fm
256
Fm
257
Fm
258
Fm
259
Fm
260
Fm
258
Fm
Half-life
Boson, 100p 158n
370 µs
Spin 0 Parity 1
Hide Decay Modes
Probability
Mode
Decay Energy
Daughter
100%
SF
N/A
Variable
Unknown
α
6.66MeV
254
Cf
Hide Ultimate Decay Products
Yield
Nuclide
Unknown
172
Yb
Unknown
205
Tl
Unknown
152
Sm
Unknown
208
Pb
Unknown
206
Pb
Unknown
180
Hf
Unknown
176
Hf
Unknown
156
Gd
Unknown
168
Er
Unknown
164
Dy
Unknown
160
Dy
Unknown
140
Ce
Atomic Weight
258.097076
Abundance
None
Mass Excess
90.426MeV
Binding Energy
7.418MeV
Magnetic Moment
0 μ
Quadrupole Moment
N/A
Show Element Pictures.
Also show decay chains leading to this isotope.
Show all decays, even very low-probability.
Click any isotope in diagram to see its data.
Decay chain image generated by
Mathematica
's
GraphPlot
and
IsotopeData
functions from
Wolfram Research, Inc.
.