H Home Background Color: He Li Be Protactinium Main Page Black White Gray B C N O F Ne Na Mg Protactinium Pictures Page Al Si P S Cl Ar K Ca Protactinium 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 Protactinium (click to see decay chain): 212Pa  213Pa  214Pa  215Pa  216Pa  217Pa  218Pa  219Pa  220Pa  221Pa  222Pa  223Pa  224Pa  225Pa  226Pa  227Pa  228Pa  229Pa  230Pa  231Pa  232Pa  233Pa  234Pa  235Pa  236Pa  237Pa  238Pa  239Pa  240Pa

234Pa     Half-life Fermion, 91p 143n 6.666666666667 h Spin 4 Parity 1 Show Decay Modes Hide Ultimate Decay Products Yield Nuclide 100.044158759% 206Pb 1.890378×10-6% 205Tl 2.600104×10-9% 208Pb Unknown 180Hf Atomic Weight 234.043308058 Abundance None Mass Excess 40.341197MeV Binding Energy 7.594673MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Element Pictures. 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..