44
101.07 u
Ru
Ruthenium
Transition Metal
Atomic Structure
Physical State
Group
8
Period
5
Block
d
Electron Configuration
[Kr] 4d⁷ 5s¹
Physical Properties
Atomic Mass:
101.07 u
Electronegativity:
2.2
Atomic Radius:
207 pm
Ionization Energy:
7.36 eV
Density:
12.37 g/cm³
Melting Point:
2607 K
Boiling Point:
4423 K
Historical Information
Discovered By:
Karl Ernst Claus
Year Discovered:
1844