Ytterbium
70
Yb
Gruppe
I/T
Periode
6
Blokk
f
Protoner
Elektroner
Nøytroner
70
70
103
Generelle egenskaper
Atomnummer
70
Atomvekt
173,054
Massetall
173
Kategori
Lantanoider
Farge
Sølv
Radioaktiv
Nei
Ytterbium was named after Ytterby, a town in Sweden
Krystallstruktur
Face Centered Cubic
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 per energinivå
2, 8, 18, 32, 8, 2
Elektronkonfigurasjon
[Xe] 4f14 6s2
Ytterbium is recovered commercially from monazite sand
Fysikalske egenskaper
Fase
Fast stoff
Tetthet
6,965 g/cm3
Smeltepunkt
1097,15 K | 824 °C | 1515,2 °F
Kokepunkt
1469,15 K | 1196 °C | 2184,8 °F
Smeltevarme
7,7 kJ/mol
Fordampningsvarme
160 kJ/mol
Spesifikk varmekapasitet
0,155 J/g·K
Forekomst i jordskorpa
0,00028%
Forekomst i universet
2×10-7%
CAS Number
7440-64-4
PubChem CID Number
23992
Atomegenskaper
Atomradius
176 pm
Kovalent radius
187 pm
Elektronegativitet
1,1 (Pauling-skalaen)
Ioniseringsenergi
6,2542 eV
Molart volum
24,79 cm3/mol
Termisk ledningsevne
0,349 W/cm·K
Oksidasjonstilstander
2, 3
Bruksområder
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