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Dyprosium

A Radioactive element
by

Danny Goldstein

on 25 November 2012

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Transcript of Dyprosium

Physical Appearance:
Dysprosium is bright silver in color. As a salt it is typically greenish-yellow. It is relatively stable at room temperature but tarnishes in moist air. It is soft enough to be cut with a knife. Results Realisation Origin:
The name dysprosium is derived from the Greek word "dysprositos," meaning hard to get at. History:
Dysprosium was discovered in 1886 by French chemist Andre Lecoq de Boisbaudran. However, it was not isolated at this time. Neither the metal nor the oxide was available in pure form until ion exchange separation and metallographic reduction techniques were developed by Spedding and associates in 1950. Ground State Electron Configuration:
[Xe]6s²4f¹º Dysprosium is used in the construction of color television tubes. In combination with vanadium and other rare earth elements, dysprosium has been used to make lasers. Dysprosium-cadmium chalcogenides provide infrared radiation, and have been used to study chemical reactions. Far Reaching Effects of Dysprosium:
Dysprosium has had a profound effect on many people. It has been widely studied and scientists are searching for new applications. However, this effect is perhaps best shown by the Australian rock group who named their band after this fantastic element. Basic Information


Name: Dysprosium
Symbol: Dy
Atomic Number: 66
Atomic Mass: 162.5 amu
Melting Point: 1412.0 °C (1685.15 K, 2573.6 °F)
Boiling Point: 2562.0 °C (2835.15 K, 4643.6 °F)
Number of Protons/Electrons: 66
Number of Neutrons: 97
Classification: Rare Earth
Crystal Structure: Hexagonal
Density @ 293 K: 8.536 g/cm3
Color: Unknown
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