Свойства

CAS Number7429-91-6
PubChem CID23912
Атомный радиус178
Атомный объем19
Атомный вес162,5
Блокf
Температура кипения2 567
Bulk Modulus
КатегорияЛантаноиды
Кристаллическая структураПростой шестиугольник
ЦветСеребряный
Ковалентный радиус192
Плотность8,55
Electrical Resistivity
Электронная конфигурация[Xe] 4f10 6s2
Электронов на оболочку2, 8, 18, 28, 8, 2
Электроотрицательность1,22
Electrons66
Группаna
Теплота плавления11,1
Теплота парообразования280
Ионизационный потенциал5,939
Magnetic Ordering
Magnetic Susceptibility
Масса162,5
Mass Number66
Температура плавления1 407
ИмяДиспрозий
Нейтроны97
Атомный номер163
Состояния окисления2, 3
Период6
ФазаТвердое тело
Poisson Ratio
Протоны66
Shear Modulus
Удельная теплоемкость0,17
СимволDy
Теплопроводность0,107
Van der Waals radius
Young's Modulus
Избыток
Избыток на Земле0.00062%
Избыток во Вселенной2×10-7%
Dy Диспрозий 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. От латинского теллус, земля 66 1886 Paul Emile Lecoq de Boisbaudran France From the Greek word "dysprositos" meaning "hard to obtain"

Изотопы теллура

Standard Atomic Weight

162.500(1)

Стабильные изотопы

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

Нестабильные изотопы

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.