Eegenskapen
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Algemian
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Nööm, Symbool, Numer
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Terbium, Tb, 65
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Seerie
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Lantanoid
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Skööl, Periode, Blook
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La, 6, f
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Klöör, Skak
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salwern witj
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CAS-Numer
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7440-27-9
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Uundial
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0,85 ppm
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Atomaar [1]
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Atoommase
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158,92535(2)[2] u
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Atoomraadius (bereegent)
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175 (225) pm
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Kovalent-Raadius
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194 pm
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Elektroonen
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[Xe] 4f9 6s2
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1. Ionisiarang
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565,8 kJ/mol
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2. Ionisiarang
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1110 kJ/mol
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3. Ionisiarang
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2114 kJ/mol
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4. Ionisiarang
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3839 kJ/mol
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Füsikaalisk [1]
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Tustant
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fääst
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Kristal
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hexagonaal
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Sachthaid
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8,253 g/cm3 (25 °C)[3]
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Magnetismus
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paramagneetisk (Χm = 0,11)[4]
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Smoltponkt
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1629 K (1356 °C)
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Köögponkt
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3396 K[5] K (3123 °C)
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Molaar Rüm
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19,30 · 10−6 m3/mol
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Dampwaremk
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391 kJ/mol[5] kJ/mol
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Smoltwaremk
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10,8 kJ/mol
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Faard faan a tuun
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2620 m/s bi 293,15 K
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Elektrisk struumfeerang
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0,870 · 106 A/(V · m)
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Waremkfeerang
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11 W/(m · K)
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Cheemisk [1]
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Oksidatsionstustant
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4, 3
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Sür of baasisk
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swaal baasisk
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Isotoopen
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Isotoop
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NH
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t1/2
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Aktiwiteet
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Energii (MeV)
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Produkt
| 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.
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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
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Elektroonenskel
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Rian terbium
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Miin uun Ytterby
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Gadolinit / Ytterbit
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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.