- Atomic Mass: 26.98154
- Electronegativity:
- Pauling: 1.61
- Allred: 1.47
- Absolute: 3.23 eV
- Electron Affinity: 44 kJ mol-1
- Polarizability: 8.3 Å3
- Effective Nuclear Charge:
- Slater: 3.5
- Clementi: 4.07
- Froese Fischer: 3.64
- Radius:
- Al 3 +: 57 pm
- Atomic: 143.1 pm
- Covalent: 125 pm
- Van der Waals: 205 pm
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- Successive Ionization Energies:
- Al -› Al + : 577.4 kJ mol-1
- Al+1 -› Al+2 : 1816.6 kJ mol-1
- Al+2 -› Al+3 : 2744.6 kJ mol-1
- Al+3 -› Al+4 : 11575 kJ mol-1
- Al+4 -› Al+5 : 14839 kJ mol-1
- Al+5 -› Al+6 : 18376 kJ mol-1
- Al+6 -› Al+7 : 23293 kJ mol-1
- Al+7 -› Al+8 : 27457 kJ mol-1
- Al+8 -› Al+9 : 31857 kJ mol-1
- Al+9 -› Al+10 : 38459 kJ mol-1
- Common Ions : Al 3 +
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