Dysprosium

Atomic number

66

Atomic mass (u)

162.500

Category

Lanthanide

Standard state

Solid

Melting point

1411.85 °C (1685 K)

Boiling point

2566.85 °C (2840 K)

Density (g/cm³)

8.55

Electronegativity (Pauling)

1.22

Electron configuration

[Xe]6s2 4f10

Oxidation states

+3

Atomic radius (pm)

229

First ionization energy (eV)

5.939

Discovery & recognition

Discovery year / period (PubChem)

1886

Discovery credited to (RSC)

Paul-Émile Lecoq de Boisbaudran

Date or period recorded by RSC

1886

Discovery place

Paris, France

An ancient date does not identify a first human discovery. Different references may date observation, isolation and formal recognition differently.

Natural occurrence & production

The creation of an element’s nuclei and its concentration into terrestrial deposits are different processes. The occurrence note below concerns its presence or production on Earth; it is not a complete account of nucleosynthesis.

“In common with many other lanthanides, dysprosium is found in the minerals monazite and bastnaesite.”

Royal Society of Chemistry · occurrence excerpt ↗

Continue the research

Reference values are not product specifications. Blank values have not been estimated. For superheavy elements, some properties and family assignments are theoretical or incompletely measured.