Question

What are the applications of lanthanides?

Answer 1

Lanthanides:

• These elements are rare-earth elements, since their occurrence is rare,
• It contains fifteen elements from Lanthanum$\left(\mathrm{La}\right)$ to 'Lutetium $\left(\mathrm{Lu}\right)$of f-block elements,$58\mathrm{to}71$
• Its elements lie in $4f$orbitals.
• Its electronic configuration is$\left[\mathrm{Xe}\right]4f^{0-14}5d^{0-1}6s^2$.
• It has high dense metals and a high melting point.
• They have a silver appearance and are lustrous,

Applications of Lanthanides:

• They are used in night vision google.
• They are used for oil extraction and optical instruments.
• Alloys of these elements are used as instrumental steels, stainless steel, etc.,
• Lead storage batteries use Ceria.
• In dyeing cotton, lead storage batteries and catalyst Cerium salts are used.
• In lighters, lanthanides are used.
• Lanthanides remove sulfur and oxygen impurities.
• Europium$\left(\mathrm{Eu}\right)$ and Yttrium$\left(\mathrm{Yb}\right)$ are used in television for the red colour in it.
• Cerium is used in jet engines and fuel additives are used as anti-knock agents.
• Lanthanum oxides are used as lenses in cameras and binoculars.