Silicon vs Molybdenum

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PropertySi SiliconMo Molybdenum
Atomic number1442
SymbolSiMo
NameSiliconMolybdenum
Categorymetalloidtransition-metal
Standard Atomic Weight28.085 u95.95 u
Period35
Group146
Blockps
Phase at STPsolidsolid
Electron configuration[Ne]3s23p2[Kr]5s14d5
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)1.92.16
Electron affinity1.385 eV0.744 eV
Density2329.6 kg/m³1.020000e+4 kg/m³
Melting point1413.85 °C2622.85 °C
Boiling point3264.85 °C4638.85 °C
Discovery year18241778