Terbio
65
Tb
Grupo
Neniu
Perio
6
Bloko
f
Protonoj
Elektronoj
Neŭtronoj
65
65
94
Ĝeneralaj Propraĵoj
Atoma Nombro
65
Atommaso
158,92535
Amasa Nombro
159
Kategorio
Lantanoidoj
Koloro
Arĝento
Radioaktiva
Ne
Terbium was named after Ytterby, a town in Sweden
Kristala Strukturo
Simpla Sesangula
Historio
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.
Elektronoj per ŝelo
2, 8, 18, 27, 8, 2
Elektrona Agordo
[Xe] 4f9 6s2
Terbium is soft enough to be cut with a knife
Fizikaj Propraĵoj
Fazo
Solido
Denso
8,229 g/cm3
Fandpunkto
1629,15 K | 1356 °C | 2472,8 °F
Bolpunkto
3503,15 K | 3230 °C | 5846 °F
Varmo de Fuzio
10,8 kJ/mol
Varmo de Vaporiĝo
295 kJ/mol
Specifa Varmo Kapacito
0,182 J/g·K
Krusta Abundo
0,000093%
Universa Abundo
5×10-8%
CAS Nombro
7440-27-9
PubChem Kunmetita Identiga Nombro
23958
Atomaj Propraĵoj
Atoma Radiuso
177 pm
Kovalenta Radiuso
194 pm
Elektronegativeco
1,2 (Pauling-skalo)
Potencialo de jonigo
5,8638 eV
Atoma Volumo
19,20 cm3/mol
Termika Kondukto
0,111 W/cm·K
Oksidaj Ŝtatoj
1, 3, 4
Aplikoj
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
Izotopoj
Stabilaj Izotopoj
159TbMalstabilaj Isotopoj
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