Ytterbium
70
Yb
Gruppe
n/a
Periode
6
Blok
f
Protoner
Elektroner
Neutroner
70
70
103
Generelle Egenskaber
Atomnummer
70
Atommasse
173,054
Masseantal
173
Kategori
Lantanider
Farve
Sølv
Radioaktiv
Nej
Ytterbium was named after Ytterby, a town in Sweden
Krystalstruktur
Fladecentreret Kubisk
Historie
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.
Elektroner i hver skal
2, 8, 18, 32, 8, 2
Elektronkonfiguration
[Xe] 4f14 6s2
Ytterbium is recovered commercially from monazite sand
Fysiske Egenskaber
Tilstandsform
Fast stof
Massefylde
6,965 g/cm3
Smeltepunkt
1097,15 K | 824 °C | 1515,2 °F
Kogepunkt
1469,15 K | 1196 °C | 2184,8 °F
Smeltevarme
7,7 kJ/mol
Fordampningsvarme
160 kJ/mol
Varmefylde
0,155 J/g·K
Forekomst i jordskorpen
0,00028%
Forekomst i universet
2×10-7%
CAS-nummer
7440-64-4
PubChem CID-nummer
23992
Atomare egenskaber
Atomradius
176 pm
Kovalent radius
187 pm
Elektronegativitet
1,1 (Paulings skala)
Ioniseringspotentiale
6,2542 eV
Atomvolumen
24,79 cm3/mol
Varmeledningsevne
0,349 W/cm·K
Oxidationstrin
2, 3
Anvendelser
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
Isotoper
Stabile isotoper
168Yb, 170Yb, 171Yb, 172Yb, 173Yb, 174Yb, 176YbUstabile isotoper
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