Terbiyum
65
Tb
Grup
yok
Periyot
6
Blok
f
Protonlar
Elektronlar
Nötronlar
65
65
94
Temel Özellikleri
Atom numarası
65
Atom ağırlığı
158,92535
Kütle Numarası
159
Kategori
Lantanit
Renk
Gümüşi
Radyoaktif
Hayir
Terbium was named after Ytterby, a town in Sweden
Kristal yapısı
Basit altıgen
Tarihi
Terbium 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 was essentially colorless in solution, but gave a brown-tinged oxide was terbium.
Using ammonium hydroxide he precipitated fractions of different basicity from yttria.
In these fractions he found that the fraction that was essentially colorless in solution, but gave a brown-tinged oxide was terbium.
Enerji seviyesi başına Elektronlar
2, 8, 18, 27, 8, 2
Elektron dizilimi
[Xe] 4f9 6s2
Terbium is soft enough to be cut with a knife
Fiziksel Özellikleri
Faz
Katı
Yoğunluk
8,229 g/cm3
Ergime noktası
1629,15 K | 1356 °C | 2472,8 °F
Kaynama noktası
3503,15 K | 3230 °C | 5846 °F
Ergime ısısı
10,8 kJ/mol
Buharlaşma ısısı
295 kJ/mol
Isı kapasitesi
0,182 J/g·K
Dünya kabuğundaki bulunulabilirliği
0,000093%
Evrendeki bulunulabilirliği
5×10-8%
CAS Numarası
7440-27-9
PubChem CID Numarası
23958
Atom Özellikleri
Atom yarıçapı
177 pm
Kovalent yarıçapı
194 pm
Elektronegatifliği
1,2 (Pauling ölçeği)
İyonlaşma enerjisi
5,8638 eV
Atomik Hacim
19,20 cm3/mol
Isıl iletkenlik
0,111 W/cm·K
Yükseltgenme seviyeleri
1, 3, 4
Uygulamalar
Terbium is used in alloys and in the production of electronic devices.
It is also used as a dopant for materials in solid-state devices and optical fibers.
Terbium oxide is in fluorescent lamps and TV tubes.
The brilliant fluorescence allows terbium to be used as a probe in biochemistry.
It is also used as a dopant for materials in solid-state devices and optical fibers.
Terbium oxide is in fluorescent lamps and TV tubes.
The brilliant fluorescence allows terbium to be used as a probe in biochemistry.
Terbium is considered to be moderately toxic
İzotoplar
Kararlı izotoplar
159TbKararsız izotoplar
136Tb, 137Tb, 138Tb, 139Tb, 140Tb, 141Tb, 142Tb, 143Tb, 144Tb, 145Tb, 146Tb, 147Tb, 148Tb, 149Tb, 150Tb, 151Tb, 152Tb, 153Tb, 154Tb, 155Tb, 156Tb, 157Tb, 158Tb, 160Tb, 161Tb, 162Tb, 163Tb, 164Tb, 165Tb, 166Tb, 167Tb, 168Tb, 169Tb, 170Tb, 171Tb