H Home Background Color: He Li Be Iridium Main Page Black White Gray B C N O F Ne Na Mg Iridium Pictures Page Al Si P S Cl Ar K Ca Iridium 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 Iridium (click to see decay chain): 164Ir  165Ir  166Ir  167Ir  168Ir  169Ir  170Ir  171Ir  172Ir  173Ir  174Ir  175Ir  176Ir  177Ir  178Ir  179Ir  180Ir  181Ir  182Ir  183Ir  184Ir  185Ir  186Ir  187Ir  188Ir  189Ir  190Ir  191Ir  192Ir  193Ir  194Ir  195Ir  196Ir  197Ir  198Ir  199Ir

172Ir     Half-life Fermion, 77p 95n 4.4 s Spin 3 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 98% β+ 8.696MeV 172Os 2% α 5.85MeV 168Re Hide Ultimate Decay Products Yield Nuclide 96.922% 172Yb Unknown 168Er Unknown 164Dy Unknown 160Dy Atomic Weight 171.970456 Abundance None Mass Excess -27.52MeV Binding Energy 7.881MeV 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..