Ytterbium

70
Yb
Grupp
n/a
Period
6
Block
f
Protoner
Elektroner
Neutroner
70
70
103
Generella Egenskaper
Atomnummer
70
Atommassa
173,054
Masstal
173
Kategori
Lantanoider
Färg
Silver
Radioaktiv
Nej
Ytterbium was named after Ytterby, a town in Sweden
Kristallstruktur
Ytcentrerat kubiskt
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.
Elektroner per skal
2, 8, 18, 32, 8, 2
Elektronkonfiguration
[Xe] 4f14 6s2
Yb
Ytterbium is recovered commercially from monazite sand
Fysikaliska Egenskaper
Aggregationstillstånd
Fast
Densitet
6,965 g/cm3
Smältpunkt
1097,15 K | 824 °C | 1515,2 °F
Kokpunkt
1469,15 K | 1196 °C | 2184,8 °F
Smältvärme
7,7 kJ/mol
Ångbildningsvärme
160 kJ/mol
Specifik värmekapacitet
0,155 J/g·K
Abundance in Earth's crust
0,00028%
Abundance in Universe
2×10-7%
Ultrapure
Bildkrediter: Images-of-elements
Ultrapure ytterbium
CAS Number
7440-64-4
PubChem CID Number
23992
Atomära Egenskaper
Atomradie
176 pm
Kovalent radie
187 pm
Elektronegativitet
1,1 (Paulingskalan)
Jonisationspotential
6,2542 eV
Molvolym
24,79 cm3/mol
Värmeledningsförmåga
0,349 W/cm·K
Oxidationstillstånd
2, 3
Användningsområden
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 is considered to be moderately toxic
Isotoper
Stabila isotoper
168Yb, 170Yb, 171Yb, 172Yb, 173Yb, 174Yb, 176Yb
Instabila 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