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 Cn Nh Fl Mc Lv Ts Og

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 0.3914662 μ Quadrupole Moment 0.049   Show Element Pictures.

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