Tantalum
Atom properties
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REAL
intelligence since 2016
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Radii
Van der Waals atomic radius (pm):
217 [7]
Empirical atomic radius (pm):
145 [7]
Covalent atomic radius (pm):
170(8) [7]
Ionic radius (Å):
Ta(V): 0.64 (6-coordinate) [1]
Ta(IV): 0.68 (6-coordinate) [1]
Ta(III): 0.72 (6-coordinate) [1]
Electronegativity
Pauling Scale:
1.5 [7]
Allen Scale:
1.34 [7]
Electron binding forces
Electron Affinity (eV):
0.322 [7]
Ionization Energy (eV):
7.89 [7]
Electron configuration
Ground state:
1s
2
-2s
2
-2p
6
-3s
2
-3p
6
-3d
10
-4s
2
-4p
6
-4d
10
-4f
14
-5s
2
-5p
6
-5d
3
-6s
2
[7]
