H Home Background Color: He Li Be Astatine Main Page Black White Gray B C N O F Ne Na Mg Astatine Pictures Page Al Si P S Cl Ar K Ca Astatine 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 Astatine (click to see decay chain): 193At  194At  195At  196At  197At  198At  199At  200At  201At  202At  203At  204At  205At  206At  207At  208At  209At  210At  211At  212At  213At  214At  215At  216At  217At  218At  219At  220At  221At  222At  223At

200At     Half-life Fermion, 85p 115n 43.2 s Spin 3 Parity 1 Show Decay Modes Hide Ultimate Decay Products Yield Nuclide 38.227% 200Hg 0.0006740319% 192Pt 2.696127599999×10-11% 188Os Unknown 196Pt Unknown 180Hf Unknown 176Hf Atomic Weight 199.990351264 Abundance None Mass Excess -8.987739MeV Binding Energy 7.783758MeV 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..