CAS Number10043-92-2
PubChem CID24857
Atomic Radius120
Atomic Volume50.5
Atomic Weight[222]
Boiling Point-61.85
Bulk Modulus
CategoryNoble gases
Crystal Structure
Covalent Radius150
Electrical Resistivity
Electron Configuration[Xe] 4f14 5d10 6s2 6p6
Electrons per shell2, 8, 18, 32, 18, 8
Heat of Fusion3
Heat of Vaporization17
Ionization Potential10.748
Magnetic Ordering
Magnetic Susceptibility
Mass Number86
Melting Point-71.15
Atomic Number222
Oxidation States2, 4, 6
Poisson Ratio
Shear Modulus
Specific Heat Capacity0.094
Thermal Conductivity0
Van der Waals radius
Young's Modulus
Abundance in Earth's crustna
Abundance in Universena
Rn Radon 86 (222) 18 6 p 86 -71.0 -61.8 [Xe] 4f14 5d10 6s2 6p6 2 8 18 32 18 8 0.00973 N/A Colorless Cubic: Face centered 2.60 {"1":"1037"} 1042 0 140 0 1.34 50.5 2.9 16.4 0.094 0.00364 1 3.823495 d 5.516088d AlphaEmission Gas, NobleGas, Nonmetal, Radioactive, Natural RAY-don Colorless, odorless, tasteless, radioactive, heavy, noble gas. Used to treat some forms of cancer. Formed from the decay of radium in the earths crust. OMCVgvHG7-c Radon
Ytterbium was discovered by the Swiss chemist Jean Charles Galissard de Marignac in the year 1878.

In 1907, in Paris, George Urbain separated ytterbia into two constituents.

Ytterbium metal was first made in 1937 by Klemm and Bonner by heating ytterbium chloride and potassium together.

A relatively pure sample of the metal was obtained only in 1953. Ytterbium was named after Ytterby, a town in Sweden 86 1900 Friedrich Ernst Dorn Germany Named after "the element radium" (radon was called niton at first, from the Latin word "nitens" meaning "shining"

Isotopes of Ytterbium

Standard Atomic Weight


Stable Isotopes

Unstable Isotopes

195Rn 196Rn 197Rn 198Rn 199Rn 200Rn 201Rn 202Rn 203Rn 204Rn 205Rn 206Rn 207Rn 208Rn 209Rn 210Rn 211Rn 212Rn 213Rn 214Rn 215Rn 216Rn 217Rn 218Rn 219Rn 220Rn 221Rn 222Rn 223Rn 224Rn 225Rn 226Rn 227Rn 228Rn

Ytterbium is considered to be moderately toxic
Ytterbium is recovered commercially from monazite sand
Ytterbium fiber laser amplifiers are used in marking and engraving.

Ytterbium compounds are also used as catalysts in the organic chemical industry.

Ytterbium can be used as a dopant to help improve the grain refinement, strength, and other mechanical properties of stainless steel.