H Home Background Color: He Li Be Potassium Main Page Black White Gray B C N O F Ne Na Mg Potassium Pictures Page Al Si P S Cl Ar K Ca Potassium 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 Uub Uut Uuq Uup Uuh Uus Uuo

Isotopes of Potassium (click to see decay chain): 32K  33K  34K  35K  36K  37K  38K  39K  40K  41K  42K  43K  44K  45K  46K  47K  48K  49K  50K  51K  52K  53K  54K  55K

39K     Half-life Boson, 19p 20n Stable Spin 3/2 Parity 1 This isotope is stable and thus has no decay products, so instead we show decay chains that lead down to it. Atomic Weight 38.963706679 Abundance 93.2581% Mass Excess -33.807011MeV Binding Energy 8.55702MeV Magnetic Moment 0.3914662μ Quadrupole Moment 0.049   Show Isotope Symbols.

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