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Ba - Barium - periodic table of the elements

An alkaline earth element, barium is also a toxic heavy metal. Minerals containing barium were identified by Karl Scheele in 1774 from which the pure metal was electrolysed by Humphrey Davy in 1808.


Atomic number - 56 Density g/mL 3 .5
Atomic weight u 137 .33 Melting point K 1002
Bonding radius A 1 .98 Boiling point K 2171
Atomic radius A 2 .78 Heat of vaporization kJ/mol 142
Ionization Potential V 5 .212 Heat of fusion kJ/mol 7 .75
Electronegativity - 0 .89 Specific heat J/gK 0 .204
The oxide is a strong base.
Crystal are body centered cubic.

Electron configuration: [Xe] 6s2

Other elements of the periodic table

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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLa * HfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAc ** RfDbSgBhHsMt110111112113
Lanthanides* CePrNdPmSmEuGdTbDyHoErTmYbLu
Actinides ** ThPaUNpPuAmCmBkCfEsFmMdNoLr