H Home Background Color: He Li Be Lawrencium Main Page Black White Gray B C N O F Ne Na Mg Lawrencium Pictures Page Al Si P S Cl Ar K Ca Lawrencium 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 Lawrencium (click to see decay chain): 251Lr  252Lr  253Lr  254Lr  255Lr  256Lr  257Lr  258Lr  259Lr  260Lr  261Lr  262Lr  263Lr  264Lr  265Lr  266Lr

257Lr     Half-life Boson, 103p 154n 646 ms Spin 9/2 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 100% α 9.009MeV 253Md 0.01% β+ 1.472MeV 257No 0.001% SF N/A Variable Show Ultimate Decay Products Atomic Weight 257.099555 Abundance None Mass Excess 92.735MeV Binding Energy 7.397MeV Magnetic Moment N/A Quadrupole Moment N/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 generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..