| Symbol |
Ru |
|
| Atomic Number |
44 |
Relative Atomic Mass
12C = 12.0000 |
101.07 |
Atomic Radius
pm |
134 |
First Ionisation Energy
kJ mol-1 |
711 |
| Electronegativity |
2.2 |
Density
kg m-3 |
12370 [293 K]
10900 [l., m.p.] |
Molar Volume
cm3 |
8.14 |
Thermal Conductivity
W m-1 K-1 |
117 [300 K] |
Melting Point
K |
2583 |
Boiling Point
K |
4173 |
| Number of Isotopes |
20 |
Ground State Electron
Configuration |
[Kr]4d75s1 |
| Term Symbol |
5F5 |
| Discovery |
Discovered by J.A Sniadecki (Vilno, Poland) in 1808 |
| Name Derived From |
Latin Ruthenia (Russia) |
Name in Other
Languages |
 Croatian | Rutenij |
 Danish | ruthenium |
 Dutch | ruthenium |
 Finnish | rutenium |
 French | ruthénium |
 German | Ruthenium |
 Italian | rutenio |
 Norwegian | ruthenium |
 Portuguese | ruténio |
 Spanish | rutenio |
 Swedish | rutenium |
| Peter van der Krogt's Element Multidict - element name translations in over 48 langauges |
