Francium
Atom properties
Content created by
REAL
intelligence since 2016
Home
About the site
Naming and classification
Physical properties
Reactions
Thermodynamic properties
Crystal structure
Atom properties
Electrochemical properties
Biological properties
Occurrence, isolation & synthesis
Isotopes
Safety
Uses
History
References
Radii
Van der Waals atomic radius (pm):
348 [6]
Empirical atomic radius (pm):
Covalent atomic radius (pm):
260 [6]
Ionic radius (Å):
Fr(I): 1.8 [1]
Electronegativity
Pauling Scale:
Allen Scale:
0.67 [6]
Electron binding forces
Electron Affinity (eV):
0.47 [6]
Ionization Energy (eV):
3.9 [6]
Electron configuration
Ground state:
1s
2
-2s
2
-2p
6
-3s2-3p
6
-3d
10
-4s
2
-4p
6
-4d
10
-4f
14
-5s
2
-5p
6
-5d
10
-6s
2
-6p
6
-7s
1
[6]
