Samarium (Sm)

Allgemeine Eigenschaften

Symbol Sm
Ordnungszahl 62
Atomgewicht 150.36
Gruppe
(Lanthanid)
Solid, Paramagnetic, Conductor, Lanthanide, Stable, Natural
Periode 6
Block f

Physikalische Eigenschaften

Dichte 7.52 g/cm3
Atomvolumen 19.9 cm3/mole
Atomradius 1.81 angstroms
Kovalenzradius --
Crust Abundance 0.0006%
Crystal Structure Rhombohedral
Color Silver

Energien

Elektronengravität 1.2 (Pauling-Skala)
Elektronenaffinität 50 kJ/mol
1. Ionisierungsenergie 545 kJ/mol
2. Ionization Energy 1070 kJ/mol
3. Ionization Energy 2260 kJ/mol
4. Ionization Energy 3990 kJ/mol
Spezifische Wärmekapazität 0.197 J g−1 K−1
Wärmeleitfähigkeit 13.3 W·m−1·K−1

Elektronen & Oxidation

Oxidationsstufen +3,2
Elektronen pro Schale 2 8 18 24 8 2
Elektronenkonfiguration [Xe] 4f6 6s2
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f6 6s2
Orbital Diagramm
1s
↿⇂
2s
↿⇂
2p
↿⇂
↿⇂
↿⇂
3s
↿⇂
3p
↿⇂
↿⇂
↿⇂
3d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4s
↿⇂
4p
↿⇂
↿⇂
↿⇂
4d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4f
↿ 
↿ 
↿ 
↿ 
↿ 
↿ 
 
5s
↿⇂
5p
↿⇂
↿⇂
↿⇂
5d
 
 
 
 
 
5f
 
 
 
 
 
 
 
6s
↿⇂
6p
 
 
 
6d
 
 
 
 
 
6f
 
 
 
 
 
 
 

Nuclear

Radioaktiv Nein

Medien

Planetarisches Bohrsches Atommodell von Samarium (Sm)
Lewis Dot Diagramm von Samarium (Sm)
Description
Silvery rare earth metal.
Uses
It is used in the electronics and ceramics industries. It is easily magnetized and very difficult to demagnetize. This suggests important future applications in solid-state and superconductor technologies.
Sources
Found with other rare earths in monazite sand. The sand is often 50% rare earths by weight and 2.8% samarium.
Pronounciation (English)
seh-MER-i-em

Übersetzungen

Afrikaans Samarium
Aragonese Samario
العربية ساماريوم
Armãneashte Samariumu
asturianu Samariu
azərbaycan dili Samarium
български Самарий
বাংলা সামারিয়াম
brezhoneg Samariom
bosanski Samarij[um]
Byelorussian Самарый
Cebuano Samaryo
čeština Samarium
Chuvash Самари
Cymraeg Samari
dansk Samarium
Deutsch Samarium
Ελληνικά Σαμαριο
English Samarium
esperanto Samario
español Samário
eesti Samaarium
euskara Samarioa
فارسی ساماریم
suomi Samarium
føroyskt Samarium
français Samarium
furlan Samari
West-Frysk Samarium
Gaeilge Samairiam
Gàidhlig Samairiam
galego Samario
ગુજરાતી સમૅરિયમનો
Gaelg Samaarium
Hakka Chinese Sân (釤)
עברית סמריום
हिन्दी सैमरियम
hrvatski Samarij
magyar Szamárium
հայերեն Սամարիում
Indonesia Samarium
íslenska Samarín
italiano Samario
日本語 サマリウム
ქართული სამარიუმი
کٲشُر Samar
қазақ тілі Самарий
한국어 사마륨
Kurdish Samaryûm
Komi Самарий
kernewek Samaryum
кыргызча Самарий
Latin Samarium
Lëtzebuergesch Samarium
Lombard Samàri
lingála Samalu
lietuvių Samaris
latviešu Samārijs
Mari Самарий
Maori Samarium
македонски Самариум
മലയാളം സമേറിയം
монгол Самари
Мокшан Самари
Bahasa Melayu Samarium
Malti Samarju[m]
Nahuatl Samario
Nederlands Samarium
norsk Samarium
Occitan Samari
ирон Самарий
polski Samar
português Samário
Runasimi Samaryu
română Samariu
русский Самарий
slovenčina Samarium
slovenščina Samarij
Samoan Samarimi
Samogitian Samaris
shqip Samarium
српски Самаријум
Southern Sotho Samariamo
svenska Samarium
Kiswahili Samari
தமிழ் சமேரியம்
Tajik Самарий
ไทย ซาแมเรียม
Türkçe Samaryum
ئۇيغۇرچە چالغا
українська Самарій
o‘zbek Samariy
Tiếng Việt Samari
Võro Samaarium
中文

Geschichte

Entdeckt
1879
Entdeckt durch
Paul Emile Lecoq de Boisbaudran
Entdeckt in
France
Wortherkunft
Named after "Samarskite" (a mineral)