Iterbi
70
Yb
Grup
n/a
Període
6
Bloc
f
Protons
Electrons
Neutrons
70
70
103
Propietats Generals
Nombre atòmic
70
Massa atòmica
173,054
Nombre de massa
173
Categoria
Lantànids
Color
Plata
Radioactiu
No
Ytterbium was named after Ytterby, a town in Sweden
Estructura cristal·lina
Cara cúbica centrada
Història
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.
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.
Electrons per capa
2, 8, 18, 32, 8, 2
Configuració electrònica
[Xe] 4f14 6s2
Ytterbium is recovered commercially from monazite sand
Propietats Físiques
Fase
Sòlid
Densitat
6,965 g/cm3
Punt de fusió
1097,15 K | 824 °C | 1515,2 °F
Punt d'ebullició
1469,15 K | 1196 °C | 2184,8 °F
Entalpia de fusió
7,7 kJ/mol
Entalpia de vaporització
160 kJ/mol
Capacitat tèrmica específica
0,155 J/g·K
Abundància a l'escorça terrestre
0,00028%
Abundància a l'univers
2×10-7%
Número CAS
7440-64-4
Número CID de PubChem
23992
Propietats Atòmiques
Radi atòmic
176 pm
Radi covalent
187 pm
Electronegativitat
1,1 (Escala de Pauling)
Potencial d'ionització
6,2542 eV
Volum atòmic
24,79 cm3/mol
Conductivitat tèrmica
0,349 W/cm·K
Estats d'oxidació
2, 3
Aplicacions
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.
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.
Ytterbium is considered to be moderately toxic
Isòtops
Isòtops estables
168Yb, 170Yb, 171Yb, 172Yb, 173Yb, 174Yb, 176YbIsòtops inestables
148Yb, 149Yb, 150Yb, 151Yb, 152Yb, 153Yb, 154Yb, 155Yb, 156Yb, 157Yb, 158Yb, 159Yb, 160Yb, 161Yb, 162Yb, 163Yb, 164Yb, 165Yb, 166Yb, 167Yb, 169Yb, 175Yb, 177Yb, 178Yb, 179Yb, 180Yb, 181Yb