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Isotopes of Thorium (click to see decay chain): 209Th  210Th  211Th  212Th  213Th  214Th  215Th  216Th  217Th  218Th  219Th  220Th  221Th  222Th  223Th  224Th  225Th  226Th  227Th  228Th  229Th  230Th  231Th  232Th  233Th  234Th  235Th  236Th  237Th  238Th

228Th     Half-life Boson, 90p 138n 1.9116 y Spin 0 Parity 1 Show Decay Modes Show Ultimate Decay Products Atomic Weight 228.028741127 Abundance None Mass Excess 26.772188MeV Binding Energy 7.645074MeV Magnetic Moment 0 μ Quadrupole Moment N/A   Show Isotope Symbols. Show only decay products of this isotope. Show Decay Image Full Size.

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