Cs | Z = 55 | ◊ ◊ ◊ ◊ ◊ |
Cesium | |
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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