100-Fermium
Nuclide weight or level energy spin & parity abundance half-life sig(J32) sig(J33) sig(J40)
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Fm-241 0.73MS 6
Fm-242 242.073430 +- 0.000430 0+ 0.8MS 2
Fm-243 243.074356 +- 0.000231 0.18S +8 -4
Fm-244 244.074054 +- 0.000217 0+ 3.3MS 4
Fm-245 245.075353 +- 0.000209 4.2S 13
Fm-246 246.075349316 +- 0.000016540 0+ 1.1S 2
Fm-247 247.076849 +- 0.000123 29S 1
Fm-247 4.3S 4
Fm-248 248.077181458 +- 0.000009180 0+ 36S 3
Fm-249 249.078928513 +- 0.000006776 (7/2+) 96S 6
Fm-250 250.079522086 +- 0.000008615 0+ 33M 3
Fm-250 m 1.00000E+03 keV 1.8S 1
Fm-251 251.081539864 +- 0.000016320 (9/2-) 5.30H 8
Fm-252 252.082468318 +- 0.000006105 0+ 25.39H 5
Fm-253 253.085185669 +- 0.000003724 (1/2)+ 3.00D 12
Fm-254 254.086855605 +- 0.000002991 0+ 3.240H 2
Fm-255 255.089964842 +- 0.000005155 7/2+ 20.07H 7 XXX XXX XXX
Fm-256 256.091774509 +- 0.000007694 0+ 157.6M 13
Fm-257 257.095106119 +- 0.000006800 (9/2+) 100.5D 2
Fm-258 258.097077 +- 0.000215 0+ 370US 43
Fm-259 259.100598 +- 0.000304 1.5S 3
Fm-260 260.102809 +- 0.000546 0+ 4MS
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