Periodic Table of the Elements: Barium


Name: Barium
Symbol: Ba
Atomic Number: 56
Atomic Mass: 137.34
Atomic Volume: 38.21 cc/mol
Discovered By: Sir Humphrey Davy
Discovery Date: 1808
Origin of Name: Barium - (Greek) barys (heavy)
Toxicity: Toxic. Soluble salts are very toxic (produce paralysis of the heart); pure barium sulfate is not toxic. Barium carbonate is toxic.
Summary: Not found free in Nature. Oxidizes easily in air. All water-soluble barium compounds are poisonous.

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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

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