Dysprosium

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Dysprosium
Name Dysprosium
Symbol Dy
Atomic number 66
Atomic mass 162.5 amu
Classification Inner Transition metal
Crystal structure Hexagonal
Color Bright Silver
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/

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