Erbium element (Er) is in period 6 of a periodic table. Erbium is in the f-block and it is classified as a lanthanide on the periodic table.
There is a lot more information related to erbium which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Erbium element (Information Table)
- Erbium element in Periodic table
- Facts about Erbium
- Properties of Erbium
- Uses of Erbium
Erbium Element (Information Table)
The important data related to erbium element is given in the table below.
|Appearance of erbium||Silvery white appearance|
|Atomic number of erbium||68|
|Symbol of erbium||Er|
|Atomic mass of erbium||167.26 u|
|Protons, Neutrons & Electrons in erbium||Protons: 68, Neutrons: 99, Electrons: 68|
|State of erbium (at STP)||Solid|
|Period number of erbium in periodic table||6|
|Block of erbium in periodic table||f-block|
|Category of erbium||Inner transition metals|
|Bohr model or Electrons per shell or Electrons arrangement in erbium||2, 8, 18, 30, 8, 2|
|Electron configuration of erbium||[Xe] 4f12 6s2|
|Orbital diagram of erbium|
|Electronegativity of erbium (on pauling scale)||1.23|
|Atomic radius of erbium (van der Waals radius)||216 picometers|
|Density of erbium||9.06 g/cm3|
|1st ionization energy of erbium||6.022 eV|
|Main isotope of erbium||166Er|
|Melting point of erbium||1802 K or 1529 °C or 2784 °F|
|Boiling point of erbium||3141 K or 2868 °C or 5194 °F|
|Crystal structure of erbium||Hexagonal Close Packed (HCP)|
|Discovery of erbium||By Carl Gustaf Mosander in 1843|
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).
Erbium element in Periodic table
The Erbium element (Er) has the atomic number 68 and is located in period 6. Erbium is a metal and it is classified as a lanthanide group element.
Facts about erbium
Here are a few interesting facts about erbium element.
- Erbium was given its name from the name of a small village “Ytterby”, which is in Sweden.
- The earth’s crust contains around 3 ppm (by weight) of erbium.
- Gadolinite and euxenite are the major ores of erbium from which the majority of erbium is extracted.
- Carl Gustaf Mosander discovered erbium in the year 1843.
Properties of erbium
Here is a list of some physical properties and chemical properties of erbium.
Physical properties of erbium
- Erbium has a silvery white appearance.
- The melting point and boiling point of erbium is 1802 K and 3141 K respectively.
- There are many isotopes of erbium, and out of those isotopes the most abundant isotope is 166Er.
- Erbium has a density of 9.06 g/cm3 and its atomic mass is 167.26 amu.
- Erbium has HCP crystal structure.
Chemical properties of erbium
- Erbium does not react easily with the atmospheric oxygen at room temperature.
- Erbium shows a reaction with water.
- It also gets dissolved in acids.
- The most common oxidation state of erbium is 3+ and the salts of erbium appear light pink in color.
Uses of erbium
Here are some uses of the erbium element.
- Erbium is used as a control rod in nuclear reactors, because it has a capacity to absorb neutrons.
- Erbium is also used in lasers to treat skin problems.
- Erbium is a soft metal and it is added to other hard metals to reduce their hardness.
- The oxides of erbium is used in glasses to give a pink tint.