Holmium element (Ho) is in period 6 of a periodic table. Holmium is in the f-block and it is classified as a lanthanide on the periodic table.
There is a lot more information related to holmium which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Holmium element (Information Table)
- Holmium element in Periodic table
- Facts about Holmium
- Properties of Holmium
- Uses of Holmium
Holmium Element (Information Table)
The important data related to holmium element is given in the table below.
|Appearance of holmium||Silvery white appearance|
|Atomic number of holmium||67|
|Symbol of holmium||Ho|
|Atomic mass of holmium||164.93 u|
|Protons, Neutrons & Electrons in holmium||Protons: 67, Neutrons: 98, Electrons: 67|
|State of holmium (at STP)||Solid|
|Period number of holmium in periodic table||6|
|Block of holmium in periodic table||f-block|
|Category of holmium||Inner transition metals|
|Bohr model or Electrons per shell or Electrons arrangement in holmium||2, 8, 18, 29, 8, 2|
|Electron configuration of holmium||[Xe] 4f11 6s2|
|Orbital diagram of holmium|
|Electronegativity of holmium (on pauling scale)||1.23|
|Atomic radius of holmium (van der Waals radius)||216 picometers|
|Density of holmium||8.8 g/cm3|
|1st ionization energy of holmium||6.022 eV|
|Main isotope of holmium||165Ho|
|Melting point of holmium||1734 K or 1461 °C or 2662 °F|
|Boiling point of holmium||2873 K or 2600 °C or 4712 °F|
|Crystal structure of holmium||Hexagonal Close Packing (HCP)|
|Discovery of holmium||By Marc Delafontaine and Jacques Louis Soret (in 1878)|
Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).
Holmium element in Periodic table
The Holmium element (Ho) has the atomic number 67 and is located in period 6. Holmium is a metal and it is classified as a lanthanide group element.
Facts about holmium
Here are a few interesting facts about the holmium element.
- The name Holmium came from the Greek word “Holmia”, which means stockholm.
- China, USA, Sri Lanka, India and Brazil are the major producers of holmium.
- Holmium is the 56th most abundant element found from the earth’s crust.
- The concentration of holmium in the earth’s crust is around 1.2 ppm by weight.
- Marc Delafontaine and Jacques Louis Soret are the two scientists who discovered holmium in the year 1878.
Properties of holmium
Here is a list of some physical properties and chemical properties of holmium.
Physical properties of holmium
- Holmium has a silvery white metallic appearance.
- Holmium has HCP crystal structure.
- The density of holmium is 8.8 g/cm3 and its atomic mass is 164.93 amu.
- Holmium has many isotopes and the most abundant isotope is 165Ho.
- The melting point and boiling point of holmium is 1734 K and 2873 K respectively.
Chemical properties of holmium
- Holmium is a reactive metal and it is always found with other compounds from the earth’s crust.
- The most common oxidation state of holmium is 3+.
- Holmium tarnishes when it is kept open in the moist air, and it forms holmium oxide.
Uses of holmium
Here are some uses of the holmium element.
- Holmium is used as an alloying element with other metals to prepare magnets.
- Holmium oxide is used in the manufacturing of yellow colored glass.
- Holmium is used in solid state lasers and also in treating kidney stones and cancer.