Ytterbium
70
Yb
Gruppe
n/a
Periode
6
Block
f
Protonen
Elektronen
Neutronen
70
70
103
Generelle Eigenschaften
Ordnungszahl
70
Atommasse
173,054
Massenzahl
173
Kategorie
Lanthanoide
Farbe
Silber
Radioaktiv
Nein
Ytterbium wurde nach Ytterby benannt, einer Stadt in Schweden
Kristallstruktur
Kubisch flächenzentriert
Geschichte
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.
Elektronen pro Schale
2, 8, 18, 32, 8, 2
Elektronenkonfiguration
[Xe] 4f14 6s2
Ytterbium is recovered commercially from monazite sand
Physikalische Eigenschaften
Aggregatzustand
Fest
Dichte
6,965 g/cm3
Schmelzpunkt
1097,15 K | 824 °C | 1515,2 °F
Siedepunkt
1469,15 K | 1196 °C | 2184,8 °F
Schmelzwärme
7,7 kJ/mol
Verdampfungswärme
160 kJ/mol
Spezifische Wärmekapazität
0,155 J/g·K
Häufigkeit in der Erdkruste
0,00028%
Häufigkeit im Universum
2×10-7%
CAS-Nummer
7440-64-4
PubChem CID-Nummer
23992
Atomeigenschaften
Atomradius
176 pm
Kovalenter Radius
187 pm
Elektronegativität
1,1 (Pauling-Skala)
Ionisierungsenergie
6,2542 eV
Molares Volumen
24,79 cm3/mol
Wärmeleitfähigkeit
0,349 W/cm·K
Oxidationszustände
2, 3
Anwendung
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
Isotope
Stabile Isotope
168Yb, 170Yb, 171Yb, 172Yb, 173Yb, 174Yb, 176YbInstabile Isotope
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