Eegenskapen
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Algemian
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Nööm, Symbool, Numer
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Tseerium, Ce, 58
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Seerie
|
Lantanoid
|
Skööl, Periode, Blook
|
La, 6, f
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Klöör, Skak
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salwern witj
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CAS-Numer
|
7440-45-1
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Uundial
|
43 ppm[1]
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Atomaar [2]
|
Atoommase
|
140,116(1)[3] u
|
Atoomraadius (bereegent)
|
185 () pm
|
Kovalent-Raadius
|
204 pm
|
Elektroonen
|
[Xe] 4f1 5d1 6s2
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1. Ionisiarang
|
534,4 kJ/mol
|
2. Ionisiarang
|
1050 kJ/mol
|
3. Ionisiarang
|
1949 kJ/mol
|
4. Ionisiarang
|
3547 kJ/mol
|
Füsikaalisk [2]
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Tustant
|
fääst
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Kristal
|
kuubisk
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Sachthaid
|
6,773 g/cm3 (25 °C)[4]
|
Hardhaid
|
2,5
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Magnetismus
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paramagneetisk (Χm = 1,4 · 10−3)[5]
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Smoltponkt
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1068 K (795 °C)
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Köögponkt
|
3743 K[6] K (3470 °C)
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Molaar Rüm
|
20,69 · 10−6 m3/mol
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Dampwaremk
|
398 kJ/mol[6] kJ/mol
|
Smoltwaremk
|
5,5 kJ/mol
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Faard faan a tuun
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2100 m/s bi 293,15 K
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Elektrisk struumfeerang
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1,35 · 106 A/(V · m)
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Waremkfeerang
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11 W/(m · K)
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Cheemisk [2]
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Oksidatsionstustant
|
3, 4
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Sür of baasisk
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lacht baasisk
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Normoolpotentiaal
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−2,34 V (Ce3+ + 3 e− → Ce)
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Elektronegatiwiteet
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1,12 (Pauling-Skala)
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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
|
Energii (MeV)
|
Produkt
| 134Ce |
{syn.}
| 3,16 d | ε | 0,500 | 134La |
135Ce |
{syn.}
| 17,7 h | ε | 2,026 | 135La |
136Ce |
0,19 %
|
stabiil |
137Ce |
{syn.}
| 9,0 h | ε | 1,222 | 137La |
138Ce |
0,25 %
|
stabiil |
139Ce |
{syn.}
| 137,64 d | ε | 0,581 | 139La |
140Ce |
88,48 %
|
stabiil |
141Ce |
{syn.}
| 32,501 d | β− | 0,581 | 141Pr |
142Ce |
11,08 %
| 5 · 1016 a | β−β− | 4,505 | 142Nd |
143Ce |
{syn.}
| 33,039 h | β− | 1,462 | 143Pr |
144Ce |
{syn.}
| 284,893 d | β− | 0,319 | 144Pr |
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Muar isotoopen bi List faan isotoopen
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Seekerhaid
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Miast wurd SI-ianhaiden brükt.
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Tseerium (uk Cerium of Cer) as en cheemisk element mä det ufkörtang Ce an det atoomnumer 58. Hat hiart tu a lantaniiden an diarmä tu a raar eerden.
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Rian Tseerium
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-
Cer(III)-kloriid
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Cer(IV)-sulfaat
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Ammoniumcer(IV)-nitraat
- ↑ Harry H. Binder: Lexikon der chemischen Elemente. S. Hirzel Verlag, Stuttgart 1999, ISBN 3-7776-0736-3.
- ↑ A taalen uun't infobox kem miast faan www.webelements.com (Cer).
- ↑ 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 bis E-145. Wäärser uun g/mol an cgs-ianhaiden. Amreegent tu SI-wäärs.
- ↑ 6,0 6,1 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.
- ↑ 7,0 7,1 Iindraanj tu Cer, Späne uun't GESTIS-dootenbeenk faan't IFA, ufrepen di 2. April 2018 (mä JavaScript).