H Home Background Color: He Li Be Thallium Main Page Black White Gray B C N O F Ne Na Mg Thallium Pictures Page Al Si P S Cl Ar K Ca Thallium 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 Thallium (click to see decay chain): 176Tl  177Tl  178Tl  179Tl  180Tl  181Tl  182Tl  183Tl  184Tl  185Tl  186Tl  187Tl  188Tl  189Tl  190Tl  191Tl  192Tl  193Tl  194Tl  195Tl  196Tl  197Tl  198Tl  199Tl  200Tl  201Tl  202Tl  203Tl  204Tl  205Tl  206Tl  207Tl  208Tl  209Tl  210Tl  211Tl  212Tl

209Tl     Half-life Boson, 81p 128n 2.2 m Spin 1/2 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 100% β- 3.97639MeV 209Pb Show Ultimate Decay Products Atomic Weight 208.985358952 Abundance None Mass Excess -13.638048MeV Binding Energy 7.833365MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Element Pictures. 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..