CsZ =  55

From the Latin "caesius", meaning "blue-gray"
(AM) Atomic Mass 132.9054  amu    Oxidation States +1
   (BP) Boiling Point 669.3  °C    (MP) Melting Point 28.4  °C
   (ρ) Density 1.87  g/cm3    Crystal Structure Body Centered Cubic
   ( χ ) Electronegativity 0.7    (AR) Atomic Radius 2.25  Å
   Physical State Liquid (C) Heat Capacity 0.242  J/g °C
Electronic-Config [Xe]  6s1     (I1) First Ionization E 375.71  kJ/mol
   (ΔHvap) Heat of Vaporization 63.9  kJ/mol     (ΔHfus) Heat of Fusion 2.09  kJ/mol
   Year of Discovery 1860    Location of Discovery Germany
(E°) Standard Potential Cs+⇔ Cs (-3.026 V)
Stable isotopes  133Cs
Discovered/Synthesized by Robert Wilhelm Bunsen, Gustav Robert Kirchoff
Natural Source The mineral/ore pollucite
Common Uses Atomic clocks, global navigation (GPS), vacuum tube scavenger
Other Info Used in precise atomic clocks
Goldish rather than silvery in color
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