Ytterbium
70
Yb
Ryhmä
Ei saatavilla
Jakso
6
Lohko
f
Protonia
Elektronit
Neutronia
70
70
103
Yleiset ominaisuudet
Järjestysluku
70
Atomipaino
173,054
Massaluku
173
Luokka
Lantanoidit
Väri
Hopea
Radioaktiivisuus
Ei
Ytterbium was named after Ytterby, a town in Sweden
Kiderakenne
Pintakeskinen kuutiollinen
Historia
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.
Elektroneja elektronikuorilla
2, 8, 18, 32, 8, 2
Orbitaalirakenne
[Xe] 4f14 6s2
Ytterbium is recovered commercially from monazite sand
Fyysiset ominaisuudet
Olomuoto
Kiinteä
Tiheys
6,965 g/cm3
Sulamispiste
1097,15 K | 824 °C | 1515,2 °F
Kiehumispiste
1469,15 K | 1196 °C | 2184,8 °F
Sulamislämpö
7,7 kJ/mol
Höyrystymislämpö
160 kJ/mol
Ominaislämpökapasiteetti
0,155 J/g·K
Esiintyvyys maankuoressa
0,00028%
Esiintyvyys maailmankaikkeudessa
2×10-7%
CAS-numero
7440-64-4
PubChem CID-numero
23992
Atomiominaisuudet
Atomisäde
176 pm
Kovalenttisäde
187 pm
Elektronegatiivisuus
1,1 (Paulingin asteikko)
Ionisoitumispotentiaali
6,2542 eV
Moolitilavuus
24,79 cm3/mol
Lämmönjohtavuus
0,349 W/cm·K
Hapetusluvut
2, 3
Käyttö
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
Isotooppi
Vakaat isotoopit
168Yb, 170Yb, 171Yb, 172Yb, 173Yb, 174Yb, 176YbEpävakaat isotoopit
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