Eigenschaften

CAS-Nummer7440-52-0
PubChem CID23980
Atomradius176
Molares Volumen18,4
Atommasse167,259
Blockf
Siedepunkt2.868
Bulk Modulus
KategorieLanthanoide
KristallstrukturEinfach hexagonal
FarbeSilber
Kovalenter Radius189
Dichte9,066
Electrical Resistivity
Elektronenkonfiguration[Xe] 4f12 6s2
Elektronen pro Schale2, 8, 18, 30, 8, 2
Elektronegativität1,24
Elektronen68
Gruppena
Schmelzwärme19,9
Verdampfungswärme285
Ionisierungsenergie6,108
Magnetic Ordering
Magnetic Susceptibility
Masse167,259
Massenzahl68
Schmelzpunkt1.529
NameErbium
Neutronen99
Ordnungszahl167
Oxidationszustände3
Periode6
AggregatzustandFest
Poisson Ratio
Protonen68
Shear Modulus
Spezifische Wärmekapazität0,168
ElementsymbolEr
Wärmeleitfähigkeit0,143
Van der Waals Radius
Young's Modulus
Häufigkeit
Häufigkeit in der Erdkruste0.0003%
Häufigkeit im Universum2×10-7%
Er Erbium 68 167.259 6 f 68 1529.0 2868.0 [Xe] 4f12 6s2 2 8 18 30 8 2 9.07 0.0003% Silver Hexagonal 1.2 {"1":"589.3","2":"1150","3":"2194","4":"4120"} 589 50 3 1.78 18.4 17.15 292.88 0.168 14.3 82.K 0 Solid, Paramagnetic, Conductor, Lanthanide, Stable, Natural UR-bi-em Soft, malleable, silvery metal. Erbium oxide is used in ceramics to obtain a pink glaze. Also a few uses in the nuclear industry and as an alloying agent for other exotic metals. For example, it increases the malleability of vanadium. Found with other heavier rare earths in xenotime and euxerite. E-DY_RT4fJ4 Erbium
Xenon was discovered in England by the Scottish chemist William Ramsay and English chemist Morris Travers in 1898.

They found xenon in the residue left over from evaporating components of liquid air.

Spectroscopic analysis showed the previously unseen beautiful blue lines that indicated the presence of a new element. Aus dem Lateinischen caesius (himmelsblau) 68 1842 Carl G. Mosander Sweden Named after the village of "Ytterby" near Vaxholm in Sweden

Isotopes of Xenon

Standard Atomic Weight

167.259(3)

Stabile Isotope

162Er 164Er 166Er 167Er 168Er 170Er

Instabile Isotope

143Er 144Er 145Er 146Er 147Er 148Er 149Er 150Er 151Er 152Er 153Er 154Er 155Er 156Er 157Er 158Er 159Er 160Er 161Er 163Er 165Er 169Er 171Er 172Er 173Er 174Er 175Er 176Er 177Er

Xenon is not toxic, but its compounds are highly toxic
If inhaled, xenon can cause a person's voice to deepen
Xenon is used in flash lamps and arc lamps, and in photographic flashes.

Xenon is used in medicine as a general anesthetic and in medical imaging.

In nuclear energy applications, xenon is used in bubble chambers, probes, and in other areas where a high molecular weight and inert nature is desirable.