Cerium vs Rhenium

PropertyCe CeriumRe Rhenium
Atomic number5875
SymbolCeRe
NameCeriumRhenium
Categorylanthanidetransition-metal
Standard Atomic Weight140.116 u186.207 u
Period66
GroupN/A7
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f15d1[Xe]6s24f145d5
Oxidation states[1, 2, 3, 4][-3, -1, 0, 1, 2, 3, 4, 5, 6, 7]
Electronegativity (Pauling)1.121.9
Electron affinity0.955 eV0.15 eV
Density6770 kg/m³2.080000e+4 kg/m³
Melting point797.85 °C3185.85 °C
Boiling point3423.85 °C5595.85 °C
Discovery year18011925