Arsenic vs Rhenium

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PropertyAs ArsenicRe Rhenium
Atomic number3375
SymbolAsRe
NameArsenicRhenium
Categorymetalloidtransition-metal
Standard Atomic Weight74.921595 u186.207 u
Period46
Group157
Blockps
Phase at STPsolidsolid
Electron configuration[Ar]4s23d104p3[Xe]6s24f145d5
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][-3, -1, 0, 1, 2, 3, 4, 5, 6, 7]
Electronegativity (Pauling)2.181.9
Electron affinity0.81 eV0.15 eV
Density5776 kg/m³2.080000e+4 kg/m³
Melting point816.85 °C3185.85 °C
Boiling point613.85 °C5595.85 °C
Discovery year12501925