Eigenschappen

CAS Number7429-91-6
PubChem CID23912
Atoomstraal178
Atoomvolume19
Atomair gewicht162,5
Blokf
Kookpunt2.567
Bulk Modulus
CategorieLanthaniden
KristalstructuurEenvoudige Hexagonaal
KleurZilver
Covalentiestraal192
Dichtheid8,55
Electrical Resistivity
Electronconfiguratie[Xe] 4f10 6s2
Eletronen per schil2, 8, 18, 28, 8, 2
Electronegativiteit1,22
Electrons66
Groepna
Fusiewarmte11,1
Verdampingswarmte280
Ionisatiepotentiaal5,939
Magnetic Ordering
Magnetic Susceptibility
Massa162,5
Mass Number66
Smeltpunt1.407
NaamDysprosium
Neutronen97
Atoomnummer163
Oxidatietoestanden2, 3
Periode6
FaseVast
Poisson Ratio
Protonen66
Shear Modulus
Specifieke Warmtecapaciteit0,17
SymboolDy
Thermische geleiding0,107
Van der Waals radius
Young's Modulus
Overmaat
Overvloedig aanwezig in de aardkorst0.00062%
Overvloedig aanwezig in het universum2×10-7%
Dy Dysprosium 66 162.5 6 f 66 1412.0 2567.0 [Xe] 4f10 6s2 2 8 18 28 8 2 8.55 0.00062% Silver Hexagonal 1.2 {"1":"573.0","2":"1130","3":"2200","4":"3990"} 573 50 3 1.8 19.0 230.0 0.173 10.7 178.K 0 Solid, Paramagnetic, Conductor, Lanthanide, Stable, Natural dis-PRO-si-em Soft, lustrous, silvery metal. Its uses are limited to the experimental and esoteric. Usually found with erbium, holmium and other rare earths in some minerals such as monazite sand, which is often 50% rare earth by weight. hFfR_qOSa-8 Dysprosium
Tellurium was discovered in Transylvania in 1782 by Franz-Joseph Müller von Reichenstein in a mineral containing tellurium and gold.

In 1789, another Hungarian scientist, Pál Kitaibel, also discovered the element independently in an ore from Deutsch-Pilsen which had been regarded as argentiferous molybdenite.

In 1798, it was named by Martin Heinrich Klaproth who earlier isolated it from the mineral calaverite. From the Latin word tellus, earth 66 1886 Paul Emile Lecoq de Boisbaudran France From the Greek word "dysprositos" meaning "hard to obtain"

Isotopen van telluur

Standard Atomic Weight

162.500(1)

Stabiele isotopen

156Dy 158Dy 160Dy 161Dy 162Dy 163Dy 164Dy

Instabiele isotopen

138Dy 139Dy 140Dy 141Dy 142Dy 143Dy 144Dy 145Dy 146Dy 147Dy 148Dy 149Dy 150Dy 151Dy 152Dy 153Dy 154Dy 155Dy 157Dy 159Dy 165Dy 166Dy 167Dy 168Dy 169Dy 170Dy 171Dy 172Dy 173Dy

Tellurium and tellurium compounds are considered to be mildly toxic
In air, tellurium burns with a greenish-blue flames, forming the dioxide
The primary use of tellurium is in alloys, foremost in steel and copper to improve machinability.

Tellurium is used as a basic ingredient in blasting caps, and is added to cast iron for chill control.

It is used in vulcanizing rubber and in catalysts for petroleum cracking.

Tellurium is used as a coloring agent in ceramics.