Ytterbium
70
Yb
Groep
n.v.t.
Periode
6
Blok
f
Protonen
Elektronen
Neutronen
70
70
103
Algemene Eigenschappen
Atoomnummer
70
Atomair gewicht
173,054
Massa Getal
173
Categorie
Lanthaniden
Kleur
Zilver
Radioactief
Nee
Ytterbium was named after Ytterby, a town in Sweden
Kristalstructuur
Zijvlak-gecentreerde Kubus
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.
Eletronen per schil
2, 8, 18, 32, 8, 2
Electronconfiguratie
[Xe] 4f14 6s2
Ytterbium is recovered commercially from monazite sand
Fysieke Eigenschappen
Fase
Vast
Dichtheid
6,965 g/cm3
Smeltpunt
1097,15 K | 824 °C | 1515,2 °F
Kookpunt
1469,15 K | 1196 °C | 2184,8 °F
Fusiewarmte
7,7 kJ/mol
Verdampingswarmte
160 kJ/mol
Specifieke Warmtecapaciteit
0,155 J/g·K
Overvloedig aanwezig in de aardkorst
0,00028%
Overvloedig aanwezig in het universum
2×10-7%
CAS-nummer
7440-64-4
PubChem CID nummer
23992
Atoomeigenschappen
Atoomstraal
176 pm
Covalentiestraal
187 pm
Electronegativiteit
1,1 (Pauling schaal)
Ionisatiepotentiaal
6,2542 eV
Atoomvolume
24,79 cm3/mol
Thermische geleiding
0,349 W/cm·K
Oxidatietoestanden
2, 3
Toepassingen
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
Isotopen
Stabiele isotopen
168Yb, 170Yb, 171Yb, 172Yb, 173Yb, 174Yb, 176YbInstabiele isotopen
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