Hassium vs Darmstadtium

PropertyHs HassiumDs Darmstadtium
Atomic number108110
SymbolHsDs
NameHassiumDarmstadtium
Categorytransition-metaltransition-metal
Standard Atomic Weight270 u281 u
Period77
Group810
Blockss
Phase at STPN/AN/A
Electron configuration[Rn]7s25f146d6[Rn]7s25f146d8(predicted)
Oxidation states[3, 4, 6, 8][0, 2, 4, 6, 8]
Electronegativity (Pauling)N/AN/A
Electron affinity1.1 eV1.6 eV
Density4.070000e+4 kg/m³3.480000e+4 kg/m³
Melting point-273.15 °C-273.15 °C
Boiling point-273.15 °C-273.15 °C
Discovery year19841994