Ytterbium vs Rhenium

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PropertyYb YtterbiumRe Rhenium
Atomic number7075
SymbolYbRe
NameYtterbiumRhenium
Categorylanthanidetransition-metal
Standard Atomic Weight173.054 u186.207 u
Period66
GroupN/A7
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f14[Xe]6s24f145d5
Oxidation states[0, 1, 2, 3][-3, -1, 0, 1, 2, 3, 4, 5, 6, 7]
Electronegativity (Pauling)N/A1.9
Electron affinity-0.02 eV0.15 eV
Density6900 kg/m³2.080000e+4 kg/m³
Melting point818.85 °C3185.85 °C
Boiling point1195.85 °C5595.85 °C
Discovery year18781925