Holmium - Wikipedia
Holmium is a chemical element; it has symbol Ho and atomic number 67. It is a rare-earth element and the eleventh member of the lanthanide series. It is a relatively soft, silvery, fairly corrosion-resistant and malleable metal.
Holmium | Definition, Properties, & Facts | Britannica
Holmium, chemical element, a rare-earth metal of the lanthanide series of the periodic table. Holmium is a moderately hard, silvery white metal that is relatively stable in air. It is a very strong paramagnet above 133 K (−140 °C, or −220 °F).
Holmium - Element information, properties and uses | Periodic ...
Element Holmium (Ho), Group 19, Atomic Number 67, f-block, Mass 164.930. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Holmium: Element 67 - Uses, Properties, and Applications
Explore the fascinating world of Holmium, Element 67. Discover its history, physical and chemical properties, and diverse applications ranging from strong magnets to medical lasers. Learn about its safety precautions and its role in both technology and healthcare.
Holmium | Elements | RSC Education
Mar 5, 2014 · Holmium is one of the lanthanoids, commonly known as rare earth elements. However the term rare earth is a misnomer because some are not actually rare: holmium is twenty times more abundant than silver. A bright, soft, silvery metal, holmium is slowly attacked by oxygen and water, and dissolves in acids. Naturally occurring holmium consists ...
Holmium Element Facts / Chemistry - chemicool.com
Holmium is a bright, soft, silvery-white, rare earth metal that is both ductile and malleable. It does not react in dry air at normal temperatures, but rapidly oxidizes to a yellow oxide (Ho 2 O 3 ) in moist air or when heated.
Holmium Facts - Element Atomic Number 67 - ThoughtCo
Mar 9, 2017 · Holmium is atomic number 67 with element symbol Ho. It is a rare earth metal belonging to the lanthanide series.