Tellurium vs Rhenium

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PropertyTe TelluriumRe Rhenium
Atomic number5275
SymbolTeRe
NameTelluriumRhenium
Categorymetalloidtransition-metal
Standard Atomic Weight127.6 u186.207 u
Period56
Group167
Blockps
Phase at STPsolidsolid
Electron configuration[Kr]5s24d105p4[Xe]6s24f145d5
Oxidation states[-2, -1, 0, 1, 2, 3, 4, 5, 6][-3, -1, 0, 1, 2, 3, 4, 5, 6, 7]
Electronegativity (Pauling)2.11.9
Electron affinity1.9708 eV0.15 eV
Density6232 kg/m³2.080000e+4 kg/m³
Melting point449.51 °C3185.85 °C
Boiling point987.85 °C5595.85 °C
Discovery year17821925