Samarium (Sm) — Lanthanide. Atomic number 62.
Silvery metal
- Atomic number: 62
- Symbol: Sm
- Atomic mass: 150.36 u
- Category: Lanthanide
- State: Solid
- Melting point: 1071.85 °C / 1345 K
- Boiling point: 1793.85 °C / 2067 K
- Density: 7.52 g/cm³ (20°C)
- Electron configuration: [Xe] 4f6 6s2
- Oxidation states: +2, +3
- Electronegativity: 1.17
- Discovered by: Paul-Émile Lecoq de Boisbaudran (1879)
Common uses: Magnets, Nuclear reactors, Cancer treatment
Biological role: No known biological role.
Frequently Asked Questions about Samarium
What is the atomic number of samarium?
Samarium has an atomic number of 62, meaning each atom contains 62 protons in its nucleus.
What is the atomic mass of samarium?
The standard atomic weight of samarium is 150.36 u (unified atomic mass units).
What category does samarium belong to?
Samarium is classified as a lanthanide.
What is the state of samarium at room temperature?
Samarium is a solid at 20 °C (68 °F).
What is the melting point of samarium?
The melting point of samarium is 1071.85 °C / 1345 K.
What is the boiling point of samarium?
The boiling point of samarium is 1793.85 °C / 2067 K.
What is the density of samarium?
The density of samarium is 7.52 g/cm³ (20°C).
What is the electronegativity of samarium?
Samarium has a Pauling electronegativity of 1.17.
What is the electron configuration of samarium?
The electron configuration of samarium is [Xe] 4f6 6s2.
What are the common oxidation states of samarium?
Samarium commonly exhibits the following oxidation states: +2, +3.
When was samarium discovered?
Samarium was discovered in 1879 by Paul-Émile Lecoq de Boisbaudran.
Is samarium radioactive?
Samarium is a stable element with no naturally occurring radioactive isotopes.
What is the biological role of samarium?
No known biological role.
What are the common uses of samarium?
Samarium is used for: Magnets; Nuclear reactors; Cancer treatment.
