Disproziy
66
Dy
Guruh
Nomaʼlum
Davr
6
Block
f
Protonlar
Elektronlar
Neytronlar
66
66
97
General Properties
Atom raqami
66
Atom massasi
162,5
Mass Number
163
Turkum
Lantanoidlar
Ranggi
Silver
Radioaktivlik
Yoʻq
From the Greek word dysprositos, meaning hard to get at
Crystal Structure
Simple Hexagonal
Tarix
French chemist Paul Émile Lecoq de Boisbaudran, while working with holmium oxide, separated dysprosium oxide from it in Paris in 1886.
His procedure for isolating the dysprosium involved dissolving dysprosium oxide in acid, then adding ammonia to precipitate the hydroxide.
It was not isolated in pure form until the development of ion exchange techniques in the 1950s.
His procedure for isolating the dysprosium involved dissolving dysprosium oxide in acid, then adding ammonia to precipitate the hydroxide.
It was not isolated in pure form until the development of ion exchange techniques in the 1950s.
Electrons per shell
2, 8, 18, 28, 8, 2
Elektron konfiguratsiyasi
[Xe] 4f10 6s2
Naturally occurring dysprosium is composed of 7 isotopes
Physical Properties
Phase
Qattiq modda
Zichlik
8,55 g/cm3
Erish harorati
1680,15 K | 1407 °C | 2564,6 °F
Qaynash harorati
2840,15 K | 2567 °C | 4652,6 °F
Heat of Fusion
11,1 kJ/mol
Heat of Vaporization
280 kJ/mol
Solishtirma issiqlik sigʻimi
0,17 J/g·K
Abundance in Earth's crust
0,00062%
Abundance in Universe
2×10-7%
CAS Number
7429-91-6
PubChem CID Number
23912
Atomic Properties
Atom radiusi
178 pm
Kovalentlik radiusi
192 pm
Elektrmanfiylik
1,22 (Poling boʻyicha)
Ionization Potential
5,9389 eV
Molyar hajm
19,0 cm3/mol
Issiqlik oʻtkazuvchanlik
0,107 W/cm·K
Oksidlanish darajasi
2, 3
Applications
Dysprosium oxide-nickel cermets are used in neutron-absorbing control rods in nuclear reactors.
Dysprosium is used in data storage applications such as compact discs and hard discs.
It is also used in dosimeters for measuring ionizing radiation.
Dysprosium iodide and dysprosium bromide are used in high intensity metal-halide lamps.
Dysprosium is used in data storage applications such as compact discs and hard discs.
It is also used in dosimeters for measuring ionizing radiation.
Dysprosium iodide and dysprosium bromide are used in high intensity metal-halide lamps.
Dysprosium is considered to be moderately toxic
Izotoplar
Barqaror izotoplar
156Dy, 158Dy, 160Dy, 161Dy, 162Dy, 163Dy, 164DyBeqaror izotoplar
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