H Home Background Color: He Li Be Hydrogen Main Page Black White Gray B C N O F Ne Na Mg Hydrogen Pictures Page Al Si P S Cl Ar K Ca Hydrogen 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 Hydrogen (click to see decay chain): 1H  2H  3H  4H  5H  6H  7H

4H     Half-life Fermion, 1p 3n 9.917391304348×10-14 ns Spin 2 Parity -1 Hide Decay Modes Probability Mode Decay Energy Daughter 100% n 2.88MeV 3H Hide Ultimate Decay Products Yield Nuclide 100% 3He Atomic Weight 4.027806424 Abundance None Mass Excess 25.901518MeV Binding Energy 1.400351MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Isotope Symbols. Show only decay products of this isotope.

Click any isotope in diagram to see its data. Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..