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barium.asc
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1992-08-06
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528b
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16 lines
BARIUM
Atomic symbol - Ba
Atomic weight - 137.327
Atomic number - 56
Electron configuration - 2-8-18-18-8-2
Oxidation states - +2
State of matter - solid
Light metal
Discovered in 1808 by Sir Humphry Davy
Boils at 1640 °C, melts at 725 °C
Notes:
Barium is used in metallurgy, pyrotechnics, radiology, and petroleum mining.
It has a silvery-white lustre when cut. Like many other light elements, it is
very reactive. It displaces hydrogen in water to form barium hydroxide.