Samarium (Sm)
General Properties
| Symbol | Sm |
|---|---|
| Atomic Number | 62 |
| Atomic Weight | 150.36 |
| Group |
(Lanthanoids)
Solid, Paramagnetic, Conductor, Lanthanide, Stable, Natural
|
| Period | 6 |
| Block | f |
Physical Properties
| Density | 7.52 g/cm3 |
|---|---|
| Atomic Volume | 19.9 cm3/mole |
| Atomic Radius | 1.81 angstroms |
| Covalent Radius | -- |
| Crust Abundance | 0.0006% |
| Crystal Structure | Rhombohedral |
| Color | Silver |
States
| Melting Point | 1074.0 °C |
|---|---|
| Boiling Point | 1794.0 °C |
| Neel Point | 106.K |
| Heat of Fusion | 11.09 kJ/mol |
| Heat of Vaporization | 191.63 kJ/mol |
Energy
| Electronegativity | 1.2 (Pauling Scale) |
|---|---|
| Electron Affinity | 50 kJ/mol |
| 1st Ionization Energy | 545 kJ/mol |
| 2. Ionization Energy | 1070 kJ/mol |
| 3. Ionization Energy | 2260 kJ/mol |
| 4. Ionization Energy | 3990 kJ/mol |
| Specific Heat Capacity | 0.197 J g−1 K−1 |
| Thermal Conductivity | 13.3 W·m−1·K−1 |
Electrons & Oxidation
| Oxidation States | +3,2 |
|---|---|
| Electrons Per Shell | 2 8 18 24 8 2 |
| Electron Configuration | [Xe] 4f6 6s2 |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f6 6s2 | |
|
Orbital Diagram
1s ↿⇂ 2s ↿⇂ 2p ↿⇂ ↿⇂ ↿⇂ 3s ↿⇂ 3p ↿⇂ ↿⇂ ↿⇂ 3d ↿⇂ ↿⇂ ↿⇂ ↿⇂ ↿⇂ 4s ↿⇂ 4p ↿⇂ ↿⇂ ↿⇂ 4d ↿⇂ ↿⇂ ↿⇂ ↿⇂ ↿⇂ 4f ↿ ↿ ↿ ↿ ↿ ↿ 5s ↿⇂ 5p ↿⇂ ↿⇂ ↿⇂ 5d 5f 6s ↿⇂ 6p 6d 6f |
|
Nuclear
| Radioactive | No |
|---|
Media
- 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
Translations
| Afrikaans | Samarium | |
| Aragonese | Samario | |
| العربية | ساماريوم | |
| Armãneashte | Samariumu | |
| asturianu | Samariu | |
| azərbaycan | 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 | |
| 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 | |
| kurdî | Samaryûm | |
| Komi | Самарий | |
| kernewek | Samaryum | |
| кыргызча | Самарий | |
| Latin | Samarium | |
| Lëtzebuergesch | Samarium | |
| Lombard | Samàri | |
| lingála | Samalu | |
| lietuvių | Samaris | |
| latviešu | Samārijs | |
| Mari | Самарий | |
| Māori | Samarium | |
| македонски | Самариум | |
| മലയാളം | സമേറിയം | |
| монгол | Самари | |
| Мокшан | Самари | |
| 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 | |
| тоҷикӣ | Самарий | |
| ไทย | ซาแมเรียม | |
| Türkçe | Samaryum | |
| ئۇيغۇرچە | چالغا | |
| українська | Самарій | |
| o‘zbek | Samariy | |
| Tiếng Việt | Samari | |
| Võro | Samaarium | |
| 中文 | 釤 |
History
- Discovered In
- 1879
- Discovered By
- Paul Emile Lecoq de Boisbaudran
- Discovered At
- France
- Word Origin
- Named after "Samarskite" (a mineral)