Ruthenium
Ru
Ruthenium
Transition Metal
Atomic number:
44
Atomic weight:
101.07
Shells:
2,8,18,15,1
Orbitals:
[Kr] 4d7 5s1
Melting point:
2334°C
Boiling point:
4150°C
Covalent radius:
1.25
Å
Atomic volume:
8.3
cm³/mol
Atomic radius:
1.89
Å
Ionic radius:
.62 (+4)
Å
Electronegativity:
2.2
Oxidation states:
2,(3,4),6,8
1st ionization pot.:
7.3605
V
2nd ionization pot.:
16.76
V
3rd ionization pot.:
28.47
V
Specific heat:
0.238
J/gK
Heat of fusion:
24.0
kJ/mol
Heat of vapor.:
595.0
kJ/mol
Thermal conduct.:
1.17
W/cmK
Electrical conduct.:
0.137
10^6/cm ohm
Density:
12.2
g/cm³
Valence:
0,1,2,3,4,5,6,7,8
