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

42K     Half-life Fermion, 19p 23n 12.321 h Spin 2 Parity -1 Hide Decay Modes Probability Mode Decay Energy Daughter 100% β- 3.525516MeV 42Ca Show Ultimate Decay Products Atomic Weight 41.96240281 Abundance None Mass Excess -35.021556MeV Binding Energy 8.551245MeV Magnetic Moment -1.1425 μ 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..