Tellurium
Tellurium
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Tellurium ΒΆ
AtomicNumber: 52
Element: Tellurium
Symbol: Te
AtomicMass: 127.6
NumberofNeutrons: 76
NumberofProtons: 52
NumberofElectrons: 52
Period: 5
Group: 16.0
Phase: solid
Radioactive: nan
Natural: yes
Metal: nan
Nonmetal: nan
Metalloid: yes
Type: Metalloid
AtomicRadius: 1.4
Electronegativity: 2.1
FirstIonization: 9.0096
Density: 6.23
MeltingPoint: 722.8
BoilingPoint: 1261.0
NumberOfIsotopes: 29.0
Discoverer: von Reichenstein
Year: 1782.0
SpecificHeat: 0.202
NumberofShells: 5
NumberofValence: 6.0