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RutheniumRu Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 1

Ruthenium is a chemical element with symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table. Like the other metals of the platinum group, ruthenium is inert to most other chemicals.

44 Atomic Number
101.07 Atomic Mass (u)
2523.15 Melting Point (K)
4423 Boiling Point (K)
12.45 Density (solid: g/cm³, gas: g/liter)
1.9 Atomic Radius (Å)
1.46 Covalent Radius (Å)
2.2 Electronegativity
7.36 First Ionization Energy (eV)
100.96 Electron Affinity
5 Number of Shells
2, 8, 18, 15, 1 Electron Shell Occupations
0.24 Specific Heat (J/g)