Eegenskapen |
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Algemian |
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Nööm, Symbool, Numer | Terbium, Tb, 65 |
Seerie | Lantanoid |
Skööl, Periode, Blook | La, 6, f |
Klöör, Skak | salwern witj |
CAS-Numer | 7440-27-9 |
Uundial | 0,85 ppm |
Atomaar [1] |
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Atoommase | 158,92535(2)[2] u |
Atoomraadius (bereegent) | 175 (225) pm |
Kovalent-Raadius | 194 pm |
Elektroonen | [Xe] 4f9 6s2 |
1. Ionisiarang | 565,8 kJ/mol |
2. Ionisiarang | 1110 kJ/mol |
3. Ionisiarang | 2114 kJ/mol |
4. Ionisiarang | 3839 kJ/mol |
Füsikaalisk [1] |
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Tustant | fääst |
Kristal | hexagonaal |
Sachthaid | 8,253 g/cm3 (25 °C)[3] |
Magnetismus | paramagneetisk (Χm = 0,11)[4] |
Smoltponkt | 1629 K (1356 °C) |
Köögponkt | 3396 K[5] K (3123 °C) |
Molaar Rüm | 19,30 · 10−6 m3/mol |
Dampwaremk | 391 kJ/mol[5] kJ/mol |
Smoltwaremk | 10,8 kJ/mol |
Faard faan a tuun | 2620 m/s bi 293,15 K |
Elektrisk struumfeerang | 0,870 · 106 A/(V · m) |
Waremkfeerang | 11 W/(m · K) |
Cheemisk [1] |
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Oksidatsionstustant | 4, 3 |
Sür of baasisk | swaal baasisk |
Isotoopen |
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Isotoop | NH | t1/2 | Aktiwiteet | Energii (MeV) | Produkt |
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149Tb | {syn.} | 4,1 h | α | 3,970 | 145Pr | 155Tb | {syn.} | 5,32 d | ε | 0,821 | 155Gd | 156Tb | {syn.} | 5,35 d | ε | 2,444 | 156Gd | 157Tb | {syn.} | 71 a | ε | 0,060 | 157Gd | 158Tb | {syn.} | 180 a | ε | 1,220 | 158Gd | β− | 0,937 | 158Dy | 159Tb | 100 % | stabiil | 160Tb | {syn.} | 72,3 d | β− | 1,835 | 160Dy | 161Tb | {syn.} | 6,88 d | β− | 0,593 | 161Dy |
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Muar isotoopen bi List faan isotoopen |
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NMR-Eegenskapen |
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Seekerhaid |
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Miast wurd SI-ianhaiden brükt. |
Terbium as en cheemisk element mä det ufkörtang Tb an det atoomnumer 65. Hat hiart tu a lantanoiden. Hat as näämd efter Ytterby uun Sweeden, jüst so üs Ütrium, Üterbium an Erbium.
SIMS-spektrum faan a
isotoopen Elektroonenskel
Rian terbium
Miin uun Ytterby
Gadolinit / Ytterbit
Sleeben Gadolinit(Y)
- ↑ A taalen för't infobox kem miast faan www.webelements.com (Terbium) .
- ↑ CIAAW, Standard Atomic Weights Revised 2013.
- ↑ N. N. Greenwood, A. Earnshaw: Chemie der Elemente. 1. aplaag. VCH, Weinheim 1988, ISBN 3-527-26169-9, S. 1579.
- ↑ Robert C. Weast (Hrsg.): CRC Handbook of Chemistry and Physics. CRC (Chemical Rubber Publishing Company), Boca Raton 1990, ISBN 0-8493-0470-9, S. E-129 bit E-145. Wäärser diar uun g/mol an uun cgs-ianhaiden. Heer amreegent tu SI-wäärs.
- ↑ 5,0 5,1 Yiming Zhang, Julian R. G. Evans, Shoufeng Yang: Corrected Values for Boiling Points and Enthalpies of Vaporization of Elements in Handbooks. Uun: Journal of Chemical & Engineering Data. 56, 2011, S. 328–337, doi:10.1021/je1011086.
- ↑ 6,0 6,1 Dootenbleed Terbium bi Sigma-Aldrich, ufrepen di 26. April 2017.