Periodic Table of the Elements
Periodic Table




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name Barium
latin Baryum
french Baryum
german Barium
symbol Ba
proton number 56
atomic weight 137.327
Pauling electronegativity 0.89
electronic configuration [Xe] 6s2
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melting point 1000 K, 727°C, 1340°F
boiling point 2143 K, 1870°C, 3398°F
group 2
period 6
state (by 20°C) solid
oxidation states +2
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Year of discovery Discoverer
1808 Sir Humphry Davy (1778-1829)

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