Dubnium element (Db) is in group 5 and period 7 of a periodic table. Dubnium is in the d-block and it is classified as a transition element on the periodic table.
There is a lot more information related to dubnium which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Dubnium element (Information Table)
- Dubnium element in Periodic table
- Facts about Dubnium
- Properties of Dubnium
- Uses of Dubnium
Dubnium Element (Information Table)
The important data related to dubnium element is given in the table below.
|Atomic number of dubnium||105|
|Symbol of dubnium||Db|
|Atomic mass of dubnium (most stable isotope)||268 u|
|Protons, Neutrons & Electrons in dubnium||Protons: 105, Neutrons: 157, Electrons: 105|
|State of dubnium (at STP)||Solid (predicted)|
|Group number of dubnium in periodic table||5|
|Period number of dubnium in periodic table||7|
|Block of dubnium in periodic table||d-block|
|Category of dubnium||Transition metal|
|Bohr model or Electrons per shell or Electrons arrangement in dubnium||2, 8, 18, 32, 32, 11, 2|
|Electron configuration of dubnium||[Rn] 5f14 6d3 7s2|
|Orbital diagram of dubnium|
|Density of dubnium (predicted)||21.6 g/cm3|
|Main isotope of dubnium||268Db|
|Crystal structure of dubnium||Body Centered Cubic (BCC)|
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).
Dubnium element in Periodic table
The Dubnium element (Db) has the atomic number 105 and is located in group 5 and period 7. Dubnium is a metal and it is classified as a transition element.
Click on above elements in the periodic table to see their information.
Facts about dubnium
Here are a few interesting facts about the dubnium element.
- Dubnium was given its name from the name of the town “Dubna”, which is in Moscow, Russia.
- Dubnium does not occur naturally but it is prepared artificially in the lab.
- There are 7 isotopes of dubnium and all these isotopes are radioactive.
- 268Db is a longest lived isotope of dubnium which has a half life of only 28 hours.
Properties of dubnium
Here is a list of some physical properties and chemical properties of dubnium.
- Dubnium is unstable and a radioactive element.
- Dubnium has BCC crystal structure (predicted).
- The predicted density of dubnium is 21.6 g/cm3 and its most stable isotope has an atomic mass 268 amu.
- It has been found through research that the +5 oxidation state of dubnium is more stable.
Uses of dubnium
Dubnium is a radioactive element and it is available in very less quantity. Because of this, it is used for research work only.
- Dubnium – Element information, properties and uses | Periodic Table. (n.d.). Dubnium – Element Information, Properties and Uses | Periodic Table. https://www.rsc.org/periodic-table/element/105/dubnium
- Dubnium – Wikipedia. (2018, March 24). Dubnium – Wikipedia. https://en.wikipedia.org/wiki/Dubnium
- It’s Elemental – The Element Dubnium. (n.d.). It’s Elemental – the Element Dubnium. https://education.jlab.org/itselemental/ele105.html
- P. (n.d.). Dubnium | Db (Element) – PubChem. Dubnium | Db (Element) – PubChem. https://pubchem.ncbi.nlm.nih.gov/element/Dubnium
- Periodic Table of Elements: Los Alamos National Laboratory. (n.d.). Periodic Table of Elements: Los Alamos National Laboratory. https://periodic.lanl.gov/105.shtml
- C&EN: IT’S ELEMENTAL: THE PERIODIC TABLE – DUBNIUM. (n.d.). C&EN: IT’S ELEMENTAL: THE PERIODIC TABLE – DUBNIUM. http://pubsapp.acs.org/cen/80th/dubnium.html?
- Dubnium | CCDC. (n.d.). Dubnium | CCDC. https://www.ccdc.cam.ac.uk/elements/dubnium/
- Prohaska, T., et al. (2022, May 1). Standard atomic weights of the elements 2021 (IUPAC Technical Report). Pure and Applied Chemistry, 94(5), 573–600. https://doi.org/10.1515/pac-2019-0603
- Haynes, W. M. (Ed.). (2014, June 4). CRC Handbook of Chemistry and Physics. https://doi.org/10.1201/b17118
- Kaye, G W.C., & Laby, T H. Tables of physical and chemical constants. 15th Edition. United States.
- Sansonetti, J. E., & Martin, W. C. (2005, December). Handbook of Basic Atomic Spectroscopic Data. Journal of Physical and Chemical Reference Data, 34(4), 1559–2259. https://doi.org/10.1063/1.1800011
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