Eegenskapen
|
|
Algemian
|
Nööm, Symbool, Numer
|
Samaarium, Sm, 62
|
Seerie
|
Lantanoid
|
Skööl, Periode, Blook
|
La, 6, f
|
Klöör, Skak
|
salwern witj
|
CAS-Numer
|
7440-19-9
|
Uundial
|
6 ppm[1]
|
Atomaar [2]
|
Atoommase
|
150,36(2)[3] u
|
Atoomraadius (bereegent)
|
185 (238) pm
|
Kovalent-Raadius
|
198 pm
|
Elektroonen
|
[Xe] 4f6 6s2
|
1. Ionisiarang
|
544,5 kJ/mol
|
2. Ionisiarang
|
1070 kJ/mol
|
3. Ionisiarang
|
2260 kJ/mol
|
Füsikaalisk [2]
|
Tustant
|
fääst
|
Kristal
|
trigonaal
|
Sachthaid
|
7,536 g/cm3 (25 °C)[4]
|
Magnetismus
|
paramagneetisk (Χm = 1,2 · 10−3)[5]
|
Smoltponkt
|
1345 K (1072 °C)
|
Köögponkt
|
2173 K[6] K (1900 °C)
|
Molaar Rüm
|
19,98 · 10−6 m3/mol
|
Dampwaremk
|
192 kJ/mol[6] kJ/mol
|
Smoltwaremk
|
8,6 kJ/mol
|
Faard faan a tuun
|
2130 m/s bi 293,15 K
|
Elektrisk struumfeerang
|
1,06 · 106 A/(V · m)
|
Waremkfeerang
|
13 W/(m · K)
|
Cheemisk [2]
|
Oksidatsionstustant
|
2, 3
|
Sür of baasisk
|
lacht baasisk
|
Elektronegatiwiteet
|
1,17 (Pauling-Skala)
|
Isotoopen
|
Isotoop
|
NH
|
t1/2
|
Aktiwiteet
|
Energii (MeV)
|
Produkt
| 144Sm |
3,07 %
|
stabiil |
145Sm |
{syn.}
| 340 d | ε | 0,617 | 145Pm |
146Sm |
{syn.}
| 68 ± 9 · 106 a[7] | α | 2,529 | 142Nd |
147Sm |
14,99 %
| 1,06 · 1011 a | α | 2,310 | 143Nd |
148Sm |
11,24 %
| 7 · 1015 a | α | 1,986 | 144Nd |
149Sm |
13,82 %
| 2 · 1015 a | α | | 145Nd |
150Sm |
7,38 %
|
stabiil |
151Sm |
{syn.}
| 90 a | β− | 0,077 | 151Eu |
152Sm |
26,75 %
|
stabiil |
153Sm |
{syn.}
| 46,27 h | β− | 0,808 | 153Eu |
154Sm |
22,75 %
|
stabiil |
|
Muar isotoopen bi List faan isotoopen
|
NMR-Eegenskapen
|
|
Seekerhaid
|
|
Miast wurd SI-ianhaiden brükt.
|
Samaarium as en cheemisk element mä det ufkörtang Sm an det atoomnumer 62. Hat hiart tu a lantanoiden.
-
SIMS-spektrum faan a
isotoopen
-
Elektroonenskel
-
Rian samaarium
-
Samaarium strimler
- ↑ Harry H. Binder: Lexikon der chemischen Elemente. S. Hirzel Verlag, Stuttgart 1999, ISBN 3-7776-0736-3.
- ↑ A taalen för't infobox kem miast faan www.webelements.com (Samarium) .
- ↑ 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.
- ↑ 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.
- ↑ Norikazu Kinoshita u. a.: A Shorter 146Sm Half-Life Measured and Implications for 146Sm-142Nd Chronology in the Solar System. Uun: Science. Vol 335, Issue 6076, 30. Marts 2012, S. 1614–1617. (PDF; 4,3 MB)
- ↑ 8,0 8,1 Dootenbleed Samarium Pulver bi Merck, ufrepen di 26. April 2017.