Cesium

Cs
Cesium
Alkali Metal

 

Atomic number:
 55
Atomic weight:
 132.90543
Shells:
 2,8,18,18,8,1
Orbitals:
 [Xe] 6s1
Melting point:
 28.4°C
Boiling point:
 669.3°C
Covalent radius:
 2.35
Å
Atomic volume:
 71.07
cm³/mol
Atomic radius:
 3.34
Å
Ionic radius:
 1.74 (+1)
Å
Electronegativity:
 0.79
Oxidation states:
 
1st ionization pot.:
 3.8939
V
2nd ionization pot.:
 25.10
V
3rd ionization pot.:
 --
V
Specific heat:
 0.24
J/gK
Heat of fusion:
 2.092
kJ/mol
Heat of vapor.:
 67.740
kJ/mol
Thermal conduct.:
 0.359
W/cmK
Electrical conduct.:
 0.0489
10^6/cm ohm
Density:
 1.873
g/cm³
Valence:
 1