Dysprosium

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Dysprosium
Properties
Atomic symbol Dy
Atomic number 66
Classification Inner Transition metal
Atomic mass 162.5 amu
Other Information
Date of discovery 1886
Name of discoverer Paul Emile Lecoq de Boisbaudran
Name origin From the Greek dysprositos, 'hard to obtain'.
Uses Nuclear reactors.
Obtained from erbium or holmium


References

http://www.webelements.com/dysprosium/