- Atomic Mass: 44.95591
- Electronegativity:
- Pauling: 1.36
- Allred: 1.2
- Absolute: 3.34 eV
- Electron Affinity: 18.1 kJ mol-1
- Polarizability: 17.8 Å3
- Effective Nuclear Charge:
- Slater: 3
- Clementi: 4.63
- Froese Fischer: 6.06
- Radius:
- Sc 3 +: 83 pm
- Atomic: 160.6 pm
- Covalent: 144 pm
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- Successive Ionization Energies:
- Sc -› Sc + : 631 kJ mol-1
- Sc+1 -› Sc+2 : 1235 kJ mol-1
- Sc+2 -› Sc+3 : 2389 kJ mol-1
- Sc+3 -› Sc+4 : 7089 kJ mol-1
- Sc+4 -› Sc+5 : 8844 kJ mol-1
- Sc+5 -› Sc+6 : 10720 kJ mol-1
- Sc+6 -› Sc+7 : 13320 kJ mol-1
- Sc+7 -› Sc+8 : 15310 kJ mol-1
- Sc+8 -› Sc+9 : 17369 kJ mol-1
- Sc+9 -› Sc+10 : 21740 kJ mol-1
- Common Ions : Sc 3 +
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