टर्बियम
65
Tb
समूह
लागू नहीं
आवर्त
6
ब्लॉक
f
प्रोटॉन
इलेक्ट्रॉन्स
न्यूट्रॉन
65
65
94
सामान्य गुण
परमाणु संख्या
65
परमाणु भार
158.92535
द्रव्यमान संख्या
159
श्रेणी
लैन्थेनाइड्स
रंग
रजत
रेडियोधर्मी
नहीं
Terbium was named after Ytterby, a town in Sweden
क्रिस्टल की संरचना
सरल हेक्सागोनल
इतिहास
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.
इलेक्ट्रॉन प्रति शेल
2, 8, 18, 27, 8, 2
इलेक्ट्रॉन कॉन्फिगरेशन
[Xe] 4f9 6s2
Terbium is soft enough to be cut with a knife
भौतिक गुण
अवस्था
ठोस
घनत्व
8.229 g/cm3
गलनांक
1629.15 K | 1356 °C | 2472.8 °F
क्वथनांक
3503.15 K | 3230 °C | 5846 °F
विलय ऊष्मा
10.8 कि.जूल/मोल
वाष्पीकरण ऊष्मा
295 कि.जूल/मोल
विशिष्ट ऊष्मा क्षमता
0.182 जूल/ग्राम•केल्विन
पृथ्वी की पपड़ी में प्रचुरता
0.000093%
ब्रह्मांड में प्रचुरता
5×10-8%
सी ए एस संख्या
7440-27-9
PubChem सी.आई.डी. संख्या
23958
परमाण्विक गुण
परमाणु का त्रिज्या
177 pm
संयोजी त्रिज्या
194 pm
इलेक्ट्रोनेगेटिविटी
1.2 (पाइलिंग पैमाना)
आयनीकरण ऊर्जाएं
5.8638 eV
परमाणु आयतन
19.20 से.मी.३/मोल
तापीय चालकता
0.111 W/cm·K
ऑक्सीकरण स्थितियां
1, 3, 4
उपयोग
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
समस्थानिक
स्थिर आइसोटोप
159Tbअस्थिर समस्थानिक
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