Atomic Number: 67.

Protons: 67 .

Electrons: 67 .

Neutrons: 98.

Average Atomic Mass:164.930 .

Isotopes: Holmium-165

Discovery:It was discovered in 1878 by J. L. Soret and Delafontaine

Name: Holmium's name comes from "Holmia" which means Sweden.

Uses: Holmium is used in some metal alloys.

Interesting Facts: Some interesting facts about Holmium is that it is only use to up some kind of metal.