Ruthenium vs Hassium

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PropertyRu RutheniumHs Hassium
Atomic number44108
SymbolRuHs
NameRutheniumHassium
Categorytransition-metaltransition-metal
Standard Atomic Weight101.07 u270 u
Period57
Group88
Blockss
Phase at STPsolidN/A
Electron configuration[Kr]5s14d7[Rn]7s25f146d6
Oxidation states[-4, -2, 1, 2, 3, 4, 5, 6, 7, 8][3, 4, 6, 8]
Electronegativity (Pauling)2.2N/A
Electron affinity1.05 eV1.1 eV
Density1.210000e+4 kg/m³4.070000e+4 kg/m³
Melting point2333.85 °C-273.15 °C
Boiling point4149.85 °C-273.15 °C
Discovery year18281984