Arsenic vs Iridium

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PropertyAs ArsenicIr Iridium
Atomic number3377
SymbolAsIr
NameArsenicIridium
Categorymetalloidtransition-metal
Standard Atomic Weight74.921595 u192.217 u
Period46
Group159
Blockps
Phase at STPsolidsolid
Electron configuration[Ar]4s23d104p3[Xe]6s24f145d7
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][-3, -2, -1, 1, 2, 3, 4, 5, 6, 7, 8, 9]
Electronegativity (Pauling)2.182.2
Electron affinity0.81 eV1.565 eV
Density5776 kg/m³2.256220e+4 kg/m³
Melting point816.85 °C2445.85 °C
Boiling point613.85 °C4427.85 °C
Discovery year12501803