Ytterbium

Symbol | Yb
Latin name | Ytterbium
Atomic number | 70
Period | 6
Element category | Inner transition elements
Relative atomic mass | 173.04
Group | III.B
Electronegativity | 1.1
Oxidation numbers | 2, 3
Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d0 6s2
Density [g/cm3] | 6.97
State | Solid
Melting point [°C] | 819
Boiling point [°C] | 1194
Atomic radius [pm] | 222
Thermal conductivity [W m-1K-1] | 34.9
Heat capacity [J K-1g-1] | 0.155
Discovery | 1878
Vickers hardness [MPa] | 206
Brinell hardness [MPa] | 343
Young's modulus [GPa] | 24
Electrical conductivity [S m-1] | 3.6 · 106
Shear modulus [GPa] | 9.9
1.st ionization energy [eV] | 6.2542
2.nd ionization energy [eV] | 12.188
3.rd ionization energy [eV] | 25.03
Stable isotopes | 7
Unstable isotopes | 9