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 Hide Decay Modes Probability Mode Decay Energy Daughter Unknown p 1.26MeV 20Mg 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 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..