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What are the intreresting facts of holmium?

Answer:
Holmium is a member of the lanthanides group.
As a curiosity holmium has the greatest magnetic strength between the elements.
Applications: as holmium oxide for the calibration of spectrophotometers, neutron adsorbent, lasers, colorant for glass, etc.
First answer by Desdichado. Last edit by Desdichado. Contributor trust: 441 [recommend contributor recommended]. Question popularity: 0 [recommend question].