Palladium vs Meitnerium

PropertyPd PalladiumMt Meitnerium
Atomic number46109
SymbolPdMt
NamePalladiumMeitnerium
Categorytransition-metaltransition-metal
Standard Atomic Weight106.42 u278 u
Period57
Group109
Blockds
Phase at STPsolidN/A
Electron configuration[Kr]4d10[Rn]7s25f146d7(calculated)
Oxidation states[1, 2, 3, 4, 5][1, 3, 4, 6, 8, 9]
Electronegativity (Pauling)2.2N/A
Electron affinity0.557 eV1.7 eV
Density1.200000e+4 kg/m³3.740000e+4 kg/m³
Melting point1554.9 °C-273.15 °C
Boiling point2962.85 °C-273.15 °C
Discovery year18031982