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Isotopes of Neptunium (click to see decay chain):
225
Np
226
Np
227
Np
228
Np
229
Np
230
Np
231
Np
232
Np
233
Np
234
Np
235
Np
236
Np
237
Np
238
Np
239
Np
240
Np
241
Np
242
Np
243
Np
244
Np
242
Np
Half-life
Fermion, 93p 149n
2.166666666667 m
Spin 1 Parity 1
Show Decay Modes
Hide Ultimate Decay Products
Yield
Nuclide
100.0441587592%
206
Pb
1.890378000004×10
-6
%
205
Tl
2.600104000006×10
-9
%
208
Pb
1.69136013816×10
-28
%
160
Dy
1.109685390816×10
-32
%
140
Ce
Unknown
172
Yb
Unknown
152
Sm
Unknown
180
Hf
Unknown
176
Hf
Unknown
156
Gd
Unknown
168
Er
Unknown
164
Dy
Atomic Weight
242.06164118
Abundance
None
Mass Excess
57.41839MeV
Binding Energy
7.533397MeV
Magnetic Moment
N/A
Quadrupole Moment
N/A
Show Element Pictures.
Show only decay products of this isotope.
Show Decay Image Full Size.
Decay chain image generated by
Mathematica
's
GraphPlot
and
IsotopeData
functions from
Wolfram Research, Inc.
.