Eigenschaften

CAS-Nummer7440-69-9
PubChem CID5359367
Atomradius156
Molares Volumen21,3
Atommasse208,98
Blockp
Siedepunkt1.564
Bulk Modulus
KategorieMetalle
KristallstrukturMoniklin basiszentriert
FarbeGrau
Kovalenter Radius148
Dichte9,78
Electrical Resistivity
Elektronenkonfiguration[Xe] 4f14 5d10 6s2 6p3
Elektronen pro Schale2, 8, 18, 32, 18, 5
Elektronegativität2,02
Elektronen83
Gruppe15
Schmelzwärme10,9
Verdampfungswärme160
Ionisierungsenergie7,286
Magnetic Ordering
Magnetic Susceptibility
Masse208,98
Massenzahl83
Schmelzpunkt271,5
NameWismut
Neutronen126
Ordnungszahl209
Oxidationszustände-3, 3, 5
Periode6
AggregatzustandFest
Poisson Ratio
Protonen83
Shear Modulus
Spezifische Wärmekapazität0,122
ElementsymbolBi
Wärmeleitfähigkeit0,08
Van der Waals Radius
Young's Modulus
Häufigkeit
Häufigkeit in der Erdkruste2.5×10-6%
Häufigkeit im Universum7×10-8%
Bi Wismut 83 208.9804 15 6 p 83 271.0 1560.0 [Xe] 4f14 5d10 6s2 6p3 2 8 18 32 18 5 9.75 2.5E-6% Gray Rhombohedral 2.0 2.01 {"1":"703","2":"1610","3":"2466","4":"4370","5":"5400","6":"8520"} 711 91.2 170 +3,5 1.7 21.3 11.0 179.0 0.122 7.87 0 1.9×101919y AlphaEmission Solid, Diamagnetic, Conductor, Metal, Stable, Natural, PoorMetal BIZ-meth Hard, brittle, steel-gray metal with a pink tint. Main use is in pharmaceuticals and low melting point alloys used as fuses. It can be found free in nature and in minerals like bismuthine (Bi2O3) and in bismuth ochre (Bi2O3) jUHN9a1zNA4 Bismuth
Erbium was discovered in 1843 by Swedish chemist Carl Gustaf Mosander, who detected it as an impurity in yttria.

Using ammonium hydroxide he precipitated fractions of different basicity from yttria.

In these fractions he found that the fraction that contained the pink color was erbium. Erbium was named after Ytterby, a town in Sweden 83 From the German word "bisemutum"

Isotopes of Erbium

Standard Atomic Weight

208.98040(1)

Stabile Isotope

209Bi

Instabile Isotope

184Bi 185Bi 186Bi 187Bi 188Bi 189Bi 190Bi 191Bi 192Bi 193Bi 194Bi 195Bi 196Bi 197Bi 198Bi 199Bi 200Bi 201Bi 202Bi 203Bi 204Bi 205Bi 206Bi 207Bi 208Bi 210Bi 211Bi 212Bi 213Bi 214Bi 215Bi 216Bi 217Bi 218Bi

Erbium is considered to be moderately toxic
The highest concentration of erbium in humans is in the bones
Erbium is used in photographic filters to absorb infrared light.

Erbium oxide gives a pink color and has been used as a colorant in glasses and porcelain enamel glazes.

It is also used in nuclear technology in neutron-absorbing control rods.

Erbium is used in alloys especially with vanadium to decrease the hardness of metals.