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.
Click on above elements in the periodic table to see their information.
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.
- James A. M. & Lord M. P. (1992). Macmillan’s chemical and physical data. Macmillan.
- Bedford, et al. (1996, April 1). Recommended values of temperature on the International Temperature Scale of 1990 for a selected set of secondary reference points. Metrologia, 33(2), 133–154. https://doi.org/10.1088/0026-1394/33/2/3
- Allred, A. (1961, June). Electronegativity values from thermochemical data. Journal of Inorganic and Nuclear Chemistry, 17(3–4), 215–221. https://doi.org/10.1016/0022-1902(61)80142-5
- Atomic Data for Erbium (Er). (n.d.). Atomic Data for Erbium (Er). https://physics.nist.gov/PhysRefData/Handbook/Tables/erbiumtable1.htm
- Erbium – Wikipedia. (2009, May 3). Erbium – Wikipedia. https://en.wikipedia.org/wiki/Erbium
- Erbium – Element information, properties and uses | Periodic Table. (n.d.). Erbium – Element Information, Properties and Uses | Periodic Table. https://www.rsc.org/periodic-table/element/68/erbium
- P. (n.d.). Erbium | Er (Element) – PubChem. Erbium | Er (Element) – PubChem. https://pubchem.ncbi.nlm.nih.gov/element/Erbium
- It’s Elemental – The Element Erbium. (n.d.). It’s Elemental – the Element Erbium. https://education.jlab.org/itselemental/ele068.html
- Periodic Table of Elements: Los Alamos National Laboratory. (n.d.). Periodic Table of Elements: Los Alamos National Laboratory. https://periodic.lanl.gov/68.shtml
- Atomic Weight of Erbium | Commission on Isotopic Abundances and Atomic Weights. (n.d.). Atomic Weight of Erbium | Commission on Isotopic Abundances and Atomic Weights. https://ciaaw.org/erbium.htm
- Possolo, et al. (2018, January 4). Interpreting and propagating the uncertainty of the standard atomic weights (IUPAC Technical Report). Pure and Applied Chemistry, 90(2), 395–424. https://doi.org/10.1515/pac-2016-0402
- Emsley, J. (2011). Nature’s Building Blocks: An A-Z Guide to the Elements. United Kingdom: OUP Oxford.
- Haynes, W. M. (Ed.). (2014, June 4). CRC Handbook of Chemistry and Physics. https://doi.org/10.1201/b17118
- Electronic structure of the elements. (2000, March). The European Physical Journal C, 15(1–4), 78–79. https://doi.org/10.1007/bf02683401
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