Ytterbium

Ytterbium
Ytterbium
Symbol Yb
Atomic Number 70
Atomic Mass 173.045
Discovered by Ytterbium was discovered by Jean Charles Galissard de Marignac

Chemical Properties of Ytterbium

Group Lanthanides Melting point 824°C, 1515°F, 1097 K
Period 6 Boiling point 1196°C, 2185°F, 1469 K
Block f Density (g cm−3) 6.90
Atomic number 70 Relative atomic mass 173.045
State at 20°C Solid Key isotopes 172Yb, 173Yb, 174Yb
Electron configuration [Xe] 4f16s2 CAS number 7440-64-4
ChemSpider ID 22428 ChemSpider is a free chemical database

What is Ytterbium?

  • Ytterbium is an element of the periodic table with an atomic number of 70, discovered by Jean de Marignac in the year 1878. The element is named after Ytterby, Sweden.
  • It is a white silvery, soft, ductile and rare earth metal.
  • It is attacked by the strong acids and reacts slowly with cold water and air. The oxide forms a protective layer on the surface when reacted or oxidized in air.
  • Physical properties of Ytterbium differ widely when compared to other elements.
  • Usually, elements will have ferromagnetic and antiferromagnetic properties at low temperatures but it is paramagnetic at a temperature of 0.1 Kelvin.

Uses of Ytterbium

  • Ytterbium clocks are the World’s most stable atomic clock. A large number of atoms present in the element made the clock more stable.
  • It is used as a doping agent to improve the strength, grain refinement and mechanical properties of stainless steel.
  • It also acts as an industrial catalyst.
  • Few alloys of Ytterbium are used in dentistry.
  •  Ytterbium, a silvery white metal is electropositive which reacts with water to form ytterbium hydroxide.
  • Nowadays, this is element is used in the making of memory devices and tunable lasers.

Practise This Question

Which is X, Y and Z respectively ?