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Te - Tellurium - periodic table of the elements

A metallic appearing metalloid, tellurium was discovered in 1782 by Baron von Reichenstein in Romania.
Atomic number - 52 Density g/mL 6 .24
Atomic weight u 127 .6 Melting point K 722 .65
Bonding radius A 1 .36 Boiling point K 1261
Atomic radius A 1 .42 Heat of vaporization kJ/mol 52 .55
Ionization Potential V 9 .009 Heat of fusion kJ/mol 17 .49
Electronegativity - 2 .1 Specific heat J/gK 0 .2
The oxide is mildly acidic.
Crystal are hexagonal.

Electron configuration: [Kr] 4d10 5s2 5p4

Other elements of the periodic table

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