Samarium
Symbol | Sm |
Atomic Number | 62 |
Atomic Mass | 150.36 g.mol -1 |
Discovered by | Paul-Émile Lecoq de Boisbaudran in 1879 |
Chemical Properties of Samarium
Group | Lanthanides | Melting point | 1072°C, 1962°F, 1345 K |
Period | 6 | Boiling point | 1794°C, 3261°F, 2067 K |
Block | f | Density (g cm-3) | 7.52 |
Atomic number | 62 | Relative atomic mass | 150.36 gmol -1 |
State at 20°C | Solid | Key isotopes | 152Sm |
Electron configuration | [Xe] 4f6 6s2 | CAS number | 7440-19-9 |
ChemSpider ID | 22391 | ChemSpider is a free chemical structure database. |
Table of Contents
- What is Samarium?
- Uses of Samarium
- Properties of Samarium
- What is Samarium?
- Certain Health Facts About Samarium
- Frequently asked questions
What is Samarium?
- Samarium is a chemical element with atomic number 62 and is represented by the symbol Sm in the Periodic Table.
- It was discovered by Paul Emile Lecoq de Boisbaudran in the year 1879.
Uses of Samarium
- The most important application of Samarium is in Samarium-Cobalt magnets which have a very high permanent magnetisation. These magnets are used in headphones, small motors and musical instruments like guitars.
- This element is used in the manufacture of solar-powered electric aircraft.
- It is used in making special infrared absorbing glass and cores of carbon arc lamp electrodes.
- Acts as a catalyst in the ethanol dehydration process. It is also used in making new permanent magnets.
Properties of Samarium
- It is a silvery-white, rare earth metal having physical properties like hardness, similar to zinc.
- It is one of the most volatile elements among Lanthanides.
- Samarium and its compounds are paramagnetic at room temperature.
- It is the 40th most abundant element in earth’s crust and the 5th most abundant element among Lanthanides.
- This element is most abundant in China, India, Brazil, the US, Australia and Sri Lanka and yearly production is estimated at 2 million tonnes.
Certain Health Facts About Samarium
- Samarium has no biological role and it is not that toxic. It is observed that some soluble salts are mildly toxic but cannot affect human life.
Frequently Asked Questions – FAQs
Q1
What is the melting point of Samarium?
1072°C.
Q2
Samarium belongs to which family?
This element is from the Lanthanide series.
Q3
Write the electronic configuration of the Samarium.
[ Xe ] 4f6 6s2 .
Q4
Samarium is a radioactive metal or not?
All lanthanides are non-radioactive except Promethium (Pm).
Q5
What is the state of Sm at 20 degrees Celcius?
Solid.
Q6
What is the colour of Sm?
Silvery-white.
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