HHomeBackground Color:He
LiBeFermium Main PageBlack White GrayBCNOFNe
NaMgFermium Pictures PageAlSiPSClAr
KCaFermium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgUubUutUuqUupUuhUusUuo

Isotopes of Fermium (click to see decay chain):
242Fm  243Fm  244Fm  245Fm  246Fm  247Fm  248Fm  249Fm  250Fm  251Fm  252Fm  253Fm  254Fm  255Fm  256Fm  257Fm  258Fm  259Fm  260Fm 

257Fm    Half-lifeFermion, 100p 157ntitle icon
100.5dSpin 9/2 Parity 1

Show Decay Modes
Show Ultimate Decay Products
Atomic Weight257.095104724
AbundanceNone
Mass Excess88.589481MeV
Binding Energy7.422196MeV
Magnetic MomentN/A
Quadrupole MomentN/A
 
Show Isotope Symbols.
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

Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..