Cerium vs Hassium

PropertyCe CeriumHs Hassium
Atomic number58108
SymbolCeHs
NameCeriumHassium
Categorylanthanidetransition-metal
Standard Atomic Weight140.116 u270 u
Period67
GroupN/A8
Blockss
Phase at STPsolidN/A
Electron configuration[Xe]6s24f15d1[Rn]7s25f146d6
Oxidation states[1, 2, 3, 4][3, 4, 6, 8]
Electronegativity (Pauling)1.12N/A
Electron affinity0.955 eV1.1 eV
Density6770 kg/m³4.070000e+4 kg/m³
Melting point797.85 °C-273.15 °C
Boiling point3423.85 °C-273.15 °C
Discovery year18011984