Name: Samarium

Atomic Symbol and Mass Number: Sm [62]

Electron Configuration: [Xe] 4f⁶ 6s²

Atomic Radii: 180 pm

Electron Affinity: 50 kJ mol‑1

Oxidation states:+4, +3, +2, +1

Electronegativity Value: 1.17

Elemental Group: Lanthanide

Uses and Properties:

• Samarium is a yellowish metal with a melting point of 1,072°C (1,962°F) and a boiling point of about 1,900°C (3,450°F). Its density is 7.53 grams per cubic centimeter.

• Samarium is the hardest and most brittle of the rare earth elements.

• Samarium is used to dope calcium chloride crystals for use in optical lasers.

• It is also used in infrared absorbing glass and as a neutron absorber in nuclear reactors.

• Samarium oxide finds specialised use in glass and ceramics.

Lewis Diagram: