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Ruthenium (Ru)
Atomic number: 44 · Category: transition metal · Group 8 · Period 5 · Phase: Solid
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.
Atomic mass: 101.072
Density: 12.45
Melting point: 2607 K
Boiling point: 4423 K
Appearance: silvery white metallic
Source: Wikipedia
Block: d
Molar heat: 24.06
CPK color:#248f8f
Electronic structure
Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d7
Configuration (semantic): [Kr] 4d7 5s1
Shells: 2, 8, 18, 15, 1
Electronegativity (Pauling): 2.2
Electron affinity: 100.96
Ionization energies: 710.2, 1620, 2747
Periodic position
Group: 8
Period: 5
xpos: 8
ypos: 5
Spectral/Bohr images
Image
3D Model