H Home Background Color: He Li Be Magnesium Main Page Black White Gray B C N O F Ne Na Mg Magnesium Pictures Page Al Si P S Cl Ar K Ca Magnesium 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 Magnesium (click to see decay chain): 19Mg  20Mg  21Mg  22Mg  23Mg  24Mg  25Mg  26Mg  27Mg  28Mg  29Mg  30Mg  31Mg  32Mg  33Mg  34Mg  35Mg  36Mg  37Mg  38Mg  39Mg  40Mg

20Mg     Half-life Boson, 12p 8n 90 ms Spin 0 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 70% β+ 9.7004MeV 20Na 30.4% β+p N/A 19Ne Show Ultimate Decay Products Atomic Weight 20.018862545 Abundance None Mass Excess 17.570348MeV Binding Energy 6.723392MeV Magnetic Moment 0 μ Quadrupole Moment N/A   Show Element Pictures. 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..