H Home Background Color: He Li Be Fermium Main Page Black White Gray B C N O F Ne Na Mg Fermium Pictures Page Al Si P S Cl Ar K Ca Fermium Technical Data Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Uub Uut Uuq Uup Uuh Uus Uuo

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

250Fm     Half-life Boson, 100p 150n 0.5h Spin 0 Parity 1 Show Decay Modes Hide Ultimate Decay Products Yield Nuclide 99.74763147406856% 206Pb 1.8847749876620117×10-6% 205Tl 2.5924072853486264×10-9% 208Pb 6.919200794088796×10-17% 160Dy 4.5396222035108375×10-21% 140Ce Unknown 172Yb Unknown 176Hf Unknown 152Sm Unknown 180Hf Unknown 156Gd Unknown 168Er Unknown 164Dy Atomic Weight 250.079521264 Abundance None Mass Excess 74.073581MeV Binding Energy 7.462084MeV Magnetic Moment 0μ Quadrupole Moment N/A   Show Element Pictures. Also show decay chains leading to this isotope. Show only decays with probability >0.1%. Show Decay Image Smaller.

Click any isotope in diagram to see its data. Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..