H Home Background Color: He Li Be Aluminum Main Page Black White Gray B C N O F Ne Na Mg Aluminum Pictures Page Al Si P S Cl Ar K Ca Aluminum 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 Aluminum (click to see decay chain): 21Al  22Al  23Al  24Al  25Al  26Al  27Al  28Al  29Al  30Al  31Al  32Al  33Al  34Al  35Al  36Al  37Al  38Al  39Al  40Al  41Al  42Al

21Al     Half-life Boson, 13p 8n 35.00000000001 ns Spin 5/2 Parity 1 Show Decay Modes Show Ultimate Decay Products Atomic Weight 21.02804 Abundance None Mass Excess 26.119MeV Binding Energy 6.343MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Element Pictures. Also show decay chains leading to this isotope. Show only decays with probability >0.1%.

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