Holmium

Holmium
Properties
Atomic symbol	Ho
Atomic number	67
Classification	Metallic
Atomic mass	164.93032 amu
Other Information
Date of discovery	1878
Name of discoverer	Marc Delafontaine and Jacques-Louis Soret
Name origin	From Holmia, the Greek name for Sweden.
Uses	Control-rods for nuclear reactors, as it readily absorbs neutrons. Also used as a flux concentrator for high magnetic fields.
Obtained from	Found chiefly in monazite and bastnasite ores