Meitnerium (Mt) – Periodic Table [Element Information & More]

Meitnerium element (Mt) is in group 9 and period 7 of a periodic table. Meitnerium is in the d-block and it is classified as a radioactive synthetic element on the periodic table.

There is a lot more information related to meitnerium which is mentioned in the Information Table given below.

So let’s dive right into it!

Table of contents

• Meitnerium element (Information Table)
• Meitnerium element in Periodic table
• Facts about Meitnerium
• Properties of Meitnerium
• Uses of Meitnerium

Meitnerium Element (Information Table)

The important data related to meitnerium element is given in the table below.

Atomic number of meitnerium	109
Symbol of meitnerium	Mt
Atomic mass of meitnerium (most stable isotope)	278 u
Protons, Neutrons & Electrons in meitnerium	Protons: 109, Neutrons: 157, Electrons: 109
State of meitnerium (at STP)	Solid (predicted)
Group number of meitnerium in periodic table	9
Period number of meitnerium in periodic table	7
Block of meitnerium in periodic table	d-block
Category of meitnerium	Synthetic element
Bohr model or Electrons per shell or Electrons arrangement in meitnerium	2, 8, 18, 32, 32, 15, 2
Electron configuration of meitnerium	[Rn] 5f14 6d7 7s2
Orbital diagram of meitnerium
Density of meitnerium (predicted)	27-28 g/cm3
Crystal structure of meitnerium (predicted)	Face Centered Cubic (FCC)

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).

Meitnerium element in Periodic table

The Meitnerium element (Mt) has the atomic number 109 and is located in group 9 and period 7.

Click on above elements in the periodic table to see their information.

Facts about meitnerium

Here are a few interesting facts about meitnerium element.

1. Gottfried Munzenberg, Peter Armbruster and other team members discovered the meitnerium element in the year 1982.
2. Meitnerium was given its name to honor the physicist Lise Meitner.
3. Meitnerium is an artificially made element and it is not available naturally.
4. Meitnerium has around 8 isotopes and all these isotopes are radioactive in nature.
5. ²⁷⁸Mt is the isotope of meitnerium which is most stable and has a half life  of 4.5 seconds only.

Properties of meitnerium

Here is a list of some physical properties and chemical properties of meitnerium.

• Meitnerium is highly radioactive in nature.
• It has been predicted that meitnerium has solid state at room temperature and pressure.
• Meitnerium has FCC crystal structure (predicted).
• The estimated density of meitnerium is between 27-28 g/cm³ and its most stable isotope has an atomic mass 278 amu.
• Many oxidation states are predicted for meitnerium, but its most common oxidation state is +3 (in aqueous solutions).

Uses of meitnerium

Meitnerium is highly radioactive and it is only used for research work. It does not have any commercial uses.

External resources:

1. Meitnerium – Element information, properties and uses | Periodic Table. (n.d.). Meitnerium – Element Information, Properties and Uses | Periodic Table. https://www.rsc.org/periodic-table/element/109/meitnerium
2. 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
3. Haynes, W. M. (Ed.). (2014, June 4). CRC Handbook of Chemistry and Physics. https://doi.org/10.1201/b17118
4. 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
5. Bondi, A. (1964, March). van der Waals Volumes and Radii. The Journal of Physical Chemistry, 68(3), 441–451. https://doi.org/10.1021/j100785a001
6. Meitnerium – Wikipedia. (2012, November 12). Meitnerium – Wikipedia. https://en.wikipedia.org/wiki/Meitnerium
7. P. (n.d.). Meitnerium | Mt (Element) – PubChem. Meitnerium | Mt (Element) – PubChem. https://pubchem.ncbi.nlm.nih.gov/element/Meitnerium
8. It’s Elemental – The Element Meitnerium. (n.d.). It’s Elemental – the Element Meitnerium. https://education.jlab.org/itselemental/ele109.html
9. Periodic Table of Elements: Los Alamos National Laboratory. (n.d.). Periodic Table of Elements: Los Alamos National Laboratory. https://periodic.lanl.gov/109.shtml