Zirconium vs Hassium

PropertyZr ZirconiumHs Hassium
Atomic number40108
SymbolZrHs
NameZirconiumHassium
Categorytransition-metaltransition-metal
Standard Atomic Weight91.224 u270 u
Period57
Group48
Blockss
Phase at STPsolidN/A
Electron configuration[Kr]5s24d2[Rn]7s25f146d6
Oxidation states[1, 2, 3, 4][3, 4, 6, 8]
Electronegativity (Pauling)1.33N/A
Electron affinity0.426 eV1.1 eV
Density6520 kg/m³4.070000e+4 kg/m³
Melting point1854.85 °C-273.15 °C
Boiling point4408.85 °C-273.15 °C
Discovery year17891984