dysprosium
Noun
Meaning
a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic
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Examples
Crystals of calcium sulfate or calcium fluoride are doped with dysprosium.
As the reaction progresses, the resulting halide compounds and molten dysprosium separate due to differences in density.
However, when the research team synthesized element 98, they could not think of a good analogy for dysprosium, and instead named the element californium in honor of the state in which it was synthesized, California.
He would have seen x-ray emission lines for both elements, but assumed that the dominant ones belonged to holmium, instead of the dysprosium impurity.
The other heavier lanthanides – terbium, dysprosium, holmium, erbium, thulium, and ytterbium – become ferromagnetic at much lower temperatures.
Fibers of dysprosium oxide fluoride can be produced by heating an aqueous solution of DyBr 3 and NaF to 450 °C at 450 bar for 17 hours.