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