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Isotopes of Radium (click to see decay chain): 202Ra  203Ra  204Ra  205Ra  206Ra  207Ra  208Ra  209Ra  210Ra  211Ra  212Ra  213Ra  214Ra  215Ra  216Ra  217Ra  218Ra  219Ra  220Ra  221Ra  222Ra  223Ra  224Ra  225Ra  226Ra  227Ra  228Ra  229Ra  230Ra  231Ra  232Ra  233Ra  234Ra

205Ra     Half-life Fermion, 88p 117n 210 ms Spin 3/2 Parity -1 Hide Decay Modes Probability Mode Decay Energy Daughter Unknown α 7.4864MeV 201Rn Unknown β+ 6.1267MeV 205Fr Hide Ultimate Decay Products Yield Nuclide Unknown 205Tl Unknown 189Os Unknown 201Hg Unknown 193Ir Unknown 197Au Atomic Weight 205.00626857 Abundance None Mass Excess 5.839136MeV Binding Energy 7.706997MeV Magnetic Moment N/A 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..