home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Explore the World of Soft…e: Engineering & Science
/
Explore_the_World_of_Software_Engineering_and_Science_HRS_Software_1998.iso
/
programs
/
physics
/
teeote.exe
/
CESIUM.ASC
< prev
next >
Wrap
Text File
|
1992-08-06
|
617b
|
17 lines
CESIUM
Atomic symbol - Cs
Atomic weight - 132.90543
Atomic number - 55
Electron configuration - 2-8-18-18-8-1
Oxidation states - +1
State of matter - solid
Light metal
Discovered in 1860 by Robert Bunsen and Gustav Kirchhoff
Boils at 671 °C, melts at 28.5 °C
Notes:
Cesium was the first element to be discovered spectroscopically. It is a
silvery-white metal that is extremely reactive and becomes a liquid in a warm
room. Cesium causes explosive reaction when dropped in water. Cesium atomic
clocks have been built. Cesium hydroxide is the most powerful base.