Chlorine vs Ruthenium

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PropertyCl ChlorineRu Ruthenium
Atomic number1744
SymbolClRu
NameChlorineRuthenium
Categoryhalogentransition-metal
Standard Atomic Weight35.4515 u101.07 u
Period35
Group178
Blockps
Phase at STPgassolid
Electron configuration[Ne]3s23p5[Kr]5s14d7
Oxidation states[-1, 1, 2, 3, 4, 5, 6, 7][-4, -2, 1, 2, 3, 4, 5, 6, 7, 8]
Electronegativity (Pauling)3.162.2
Electron affinity3.6127 eV1.05 eV
Density3.214 kg/m³1.210000e+4 kg/m³
Melting point-101.5 °C2333.85 °C
Boiling point-34.04 °C4149.85 °C
Discovery year17741828