70 Yb 173.0451
Ytterbium
LANTHANIDE
Phase: Solid
Discovered: Jean Charles Galissard de Marignac
Block: F
Summary
Ytterbium is a chemical element with symbol Yb and atomic number 70. It is the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. However, like the other lanthanides, its most common oxidation state is +3, seen in its oxide, halides and other compounds.
Source: WikipediaPhysical Properties
Atomic Mass 173.0451 u
Density 6.9 g/cm³
Melting Point 1097 K
Boiling Point 1469 K
Molar Heat 26.74 J/(mol·K)
Electron Affinity -1.93 kJ/mol
Ionization Energies
1st: 603.4 kJ/mol
2nd: 1174.8 kJ/mol
3rd: 2417 kJ/mol
4th: 4203 kJ/mol