Disprozyum
66
Dy
Grup
yok
Periyot
6
Blok
f
Protonlar
Elektronlar
Nötronlar
66
66
97
Temel Özellikleri
Atom numarası
66
Atom ağırlığı
162,5
Kütle Numarası
163
Kategori
Lantanit
Renk
Gümüşi
Radyoaktif
Hayir
From the Greek word dysprositos, meaning hard to get at
Kristal yapısı
Basit altıgen
Tarihi
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.
Enerji seviyesi başına Elektronlar
2, 8, 18, 28, 8, 2
Elektron dizilimi
[Xe] 4f10 6s2
Naturally occurring dysprosium is composed of 7 isotopes
Fiziksel Özellikleri
Faz
Katı
Yoğunluk
8,55 g/cm3
Ergime noktası
1680,15 K | 1407 °C | 2564,6 °F
Kaynama noktası
2840,15 K | 2567 °C | 4652,6 °F
Ergime ısısı
11,1 kJ/mol
Buharlaşma ısısı
280 kJ/mol
Isı kapasitesi
0,17 J/g·K
Dünya kabuğundaki bulunulabilirliği
0,00062%
Evrendeki bulunulabilirliği
2×10-7%
CAS Numarası
7429-91-6
PubChem CID Numarası
23912
Atom Özellikleri
Atom yarıçapı
178 pm
Kovalent yarıçapı
192 pm
Elektronegatifliği
1,22 (Pauling ölçeği)
İyonlaşma enerjisi
5,9389 eV
Atomik Hacim
19,0 cm3/mol
Isıl iletkenlik
0,107 W/cm·K
Yükseltgenme seviyeleri
2, 3
Uygulamalar
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
İzotoplar
Kararlı izotoplar
156Dy, 158Dy, 160Dy, 161Dy, 162Dy, 163Dy, 164DyKararsız 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