44

Ru

Ruthenium

101.07

Transition Metal
Solid

Discovery

Klaus, Karl Karlovich (1844)

Etymology

Latin

Meaning

The area Kievan Rus'

Electron configuration

Electron configuration

Crystal structure

Crystal structure

Hexagonal close-packed

Physical Properties

Phase

  (at 21 °C and 101.325 kPa)

Solid

Melting point

  (at 101.325 kPa)

2250.0 °C

2523.15 K

Boiling point

  (at 101.325 kPa)

4877.0 °C

5150.15 K

Density

  (at 21 °C and 101.325 kPa)

12.37 g/cm3

Electronegativity

2.20