Holmium (Ho) — Element Properties, Uses & Facts
Overview
Holmium is a chemical element with symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare earth element. Holmium was discovered by Swedish chemist Per Theodor Cleve.
Electron configuration
The electron configuration of Holmium is [Xe] 4f11 6s2, with electron shells of 2, 8, 18, 29, 8, 2.
Physical and chemical properties
Holmium is classified as a lanthanide. It has an atomic mass of 164.93 and exists as a solid at standard conditions, appearing as silvery white.
Real-world uses of Holmium
Holmium, a lanthanide, is used in magnets, electronics, lighting, and other specialized high-tech applications.
Interesting facts about Holmium
- Holmium has the atomic number 67 and chemical symbol Ho.
- It belongs to period 6, group 3 of the periodic table.
- Holmium was discovered by Marc Delafontaine.
Explore Holmium interactively
Want to compare Holmium with other elements or see it highlighted on the full table? Open the interactive periodic table and click on Ho to explore properties, trends, and neighboring elements. You can also test your knowledge with our periodic table quiz game.
What is Holmium used for?
Holmium, a lanthanide, is used in magnets, electronics, lighting, and other specialized high-tech applications.
What is the atomic number of Holmium?
The atomic number of Holmium is 67, meaning it has 67 protons in its nucleus.
What is the electron configuration of Holmium?
The electron configuration of Holmium is [Xe] 4f11 6s2.
Is Holmium a metal, nonmetal, or metalloid?
Holmium is classified as a lanthanide.