Silicon vs Ruthenium

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PropertySi SiliconRu Ruthenium
Atomic number1444
SymbolSiRu
NameSiliconRuthenium
Categorymetalloidtransition-metal
Standard Atomic Weight28.085 u101.07 u
Period35
Group148
Blockps
Phase at STPsolidsolid
Electron configuration[Ne]3s23p2[Kr]5s14d7
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][-4, -2, 1, 2, 3, 4, 5, 6, 7, 8]
Electronegativity (Pauling)1.92.2
Electron affinity1.385 eV1.05 eV
Density2329.6 kg/m³1.210000e+4 kg/m³
Melting point1413.85 °C2333.85 °C
Boiling point3264.85 °C4149.85 °C
Discovery year18241828