Barium
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Element
Name: Barium
Symbol: Ba
Atomic Number: 56
Atomic Mass: 137.3 amu
Number of electrons: 56
Classification: Standard Metal
Crystal structure: Cubic
Color: Silver
Date of Discovery: 1808
Name of Discoverer: Sir Humphrey Davy
Name Origin: From the Greek barys, heavy.
Uses: Barium is used in Medicine.
Obtained from: barytine and whiterite.