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Cesium Facts
Science > Chemistry > Periodic Table of Elements > Cesium
Cesium
55
Cs
132.91
Electron
Configuration
2
8
18
18
8
1
Atomic Number of Cesium 55
Atomic Symbol of Cesium Cs
Atomic Weight of Cesium 132.91
Color of Cesium golden
Density of Cesium 1.879 g/cubic centimeter
Melting Point of Cesium 28 degrees C / 83 degrees F
Boiling Point of Cesium 671 degrees C / 1240 degrees F
Cesium State At Room Temp solid
Classification of Cesium metallic - alkali metal
Date Cesium Was Discovered 1860
Facts on Cesium Ceasium is an alkali metal and a highly reactive element. Ceasium runs atomic clocks, accurate to within 1 second over 100,000 years. Caesium hydroxide is the strongest base known. Caesium is the most electropositive, most alkaline and has the least ionization potential of all the elements. Ceasium is highly toxic to humans. Ceasium is the least abundant of the 5 naturally occurring alkali metals.
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