Ruthenium
Ruthenium
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Ruthenium ΒΆ
AtomicNumber: 44
Element: Ruthenium
Symbol: Ru
AtomicMass: 101.07
NumberofNeutrons: 57
NumberofProtons: 44
NumberofElectrons: 44
Period: 5
Group: 8.0
Phase: solid
Radioactive: nan
Natural: yes
Metal: yes
Nonmetal: nan
Metalloid: nan
Type: Transition Metal
AtomicRadius: 1.9
Electronegativity: 2.2
FirstIonization: 7.3605
Density: 12.4
MeltingPoint: 2523.15
BoilingPoint: 4423.0
NumberOfIsotopes: 16.0
Discoverer: Klaus
Year: 1844.0
SpecificHeat: 0.238
NumberofShells: 5
NumberofValence: nan