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

251No     Half-life Fermion, 102p 149n 800 ms Spin 7/2 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 83% α 8.907MeV 247Fm 17% β+ 2.865MeV 251Md 0.3% SF N/A Variable Show Ultimate Decay Products Atomic Weight 251.089012 Abundance None Mass Excess 82.914MeV Binding Energy 7.423MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Isotope Symbols. Show only decay products of this isotope. 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..