H Home Background Color: He Li Be Nobelium Main Page Black White Gray B C N O F Ne Na Mg Nobelium Pictures Page Al Si P S Cl Ar K Ca Nobelium 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 Cn Nh Fl Mc Lv Ts Og

Isotopes of Nobelium (click to see decay chain): 248No  249No  250No  251No  252No  253No  254No  255No  256No  257No  258No  259No  260No  261No  262No  263No  264No

254No     Half-life Boson, 102p 152n 51 s Spin 0 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 90% α 8.2258MeV 250Fm 10% β+ 188keV 254Md 0.17% SF N/A Variable Hide Ultimate Decay Products Yield Nuclide 99.77728420259% 206Pb 1.885335288896×10-6% 205Tl 2.593176956814×10-9% 208Pb 6.227280714682×10-17% 160Dy 4.085659983161×10-21% 140Ce Unknown 172Yb Unknown 152Sm Unknown 180Hf Unknown 176Hf Unknown 156Gd Unknown 168Er Unknown 164Dy Atomic Weight 254.090955253 Abundance None Mass Excess 84.724274MeV Binding Energy 7.423586MeV Magnetic Moment 0 μ Quadrupole Moment N/A   Show Isotope Symbols. Also show decay chains leading to this isotope. Show only decays with probability >0.1%. Show Decay Image Full Size.

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