Arsenic vs Molybdenum

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PropertyAs ArsenicMo Molybdenum
Atomic number3342
SymbolAsMo
NameArsenicMolybdenum
Categorymetalloidtransition-metal
Standard Atomic Weight74.921595 u95.95 u
Period45
Group156
Blockps
Phase at STPsolidsolid
Electron configuration[Ar]4s23d104p3[Kr]5s14d5
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)2.182.16
Electron affinity0.81 eV0.744 eV
Density5776 kg/m³1.020000e+4 kg/m³
Melting point816.85 °C2622.85 °C
Boiling point613.85 °C4638.85 °C
Discovery year12501778