Samarium element (Sm) is in period 6 of a periodic table. Samarium is in the f-block and it is classified as a lanthanide on the periodic table.
There is a lot more information related to samarium which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Samarium element (Information Table)
- Samarium element in Periodic table
- Facts about Samarium
- Properties of Samarium
- Uses of Samarium
Samarium Element (Information Table)
The important data related to samarium element is given in the table below.
|Appearance of samarium||Silvery white|
|Atomic number of samarium||62|
|Symbol of samarium||Sm|
|Atomic mass of samarium||150.36 u|
|Protons, Neutrons & Electrons in samarium||Protons: 62, Neutrons: 88, Electrons: 62|
|State of samarium (at STP)||Solid|
|Period number of samarium in periodic table||6|
|Block of samarium in periodic table||f-block|
|Category of samarium||Inner transition metals|
|Bohr model or Electrons per shell or Electrons arrangement in samarium||2, 8, 18, 24, 8, 2|
|Electron configuration of samarium||[Xe] 4f6 6s2|
|Orbital diagram of samarium|
|Electronegativity of samarium (on pauling scale)||1.17|
|Atomic radius of samarium (van der Waals radius)||229 picometers|
|Density of samarium||7.35 g/cm3|
|1st ionization energy of samarium||5.644 eV|
|Main isotope of samarium||152Sm|
|Melting point of samarium||1345 K or 1072 °C or 1962 °F|
|Boiling point of samarium||2173 K or 1900 °C or 3452 °F|
|Crystal structure of samarium||Rhombohedral|
|Discovery of samarium||By Lecoq de Boisbaudran in 1879|
Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).
Samarium element in Periodic table
The Samarium element (Sm) has the atomic number 62 and is located in period 6. Samarium is a metal and it is classified as a lanthanide group element.
Facts about samarium
Here are a few interesting facts about the samarium element.
- Samarium was given its name from the name of its ore “samarskite”.
- Lecoq de Boisbaudran was the chemist who discovered samarium in 1879.
- The concentration of samarium in the earth’s crust is around 6 ppm by weight.
- Samarium is the 40th most abundant element present in the earth’s crust.
Properties of samarium
Here is a list of some physical properties and chemical properties of samarium.
Physical properties of samarium
- Samarium has a silvery-gray metallic appearance.
- Samarium has many isotopes and the most abundant isotope is 152Sm.
- The density of samarium is 7.35 g/cm3 and its atomic mass is 150.36 amu.
- The melting point and boiling point of samarium is 1345 K and 2173 K respectively.
- Samarium has a rhombohedral crystal structure.
Chemical properties of samarium
- Samarium is reactive and it tarnishes easily if kept open in the air.
- Samarium metal starts to ignite when it is heated in the air at the temperature of 150 °C.
- Samarium is a reactive metal and so it is found in a compound form with other elements.
- The most common oxidation state of samarium is +3.
- Samarium has an electron configuration of [Xe] 4f6 6s2 and it is classified as a f-block element on the periodic table because of the last electron entering in the f-orbitals.
Uses of samarium
Here are some uses of the samarium element.
- Samarium is used in carbon arc lighting which is used in studio lighting.
- Samarium is also used as a neutron absorber in nuclear power plants.
- Samarium is also used in manufacturing of optical lasers as well as glasses that can absorb infrared rays.
- Samarium and cobalt are alloyed with each other to make magnets.