Meitnerium Electron Configuration:7 Facts You Should Know!

Meitnerium is an extremely radioactive synthetic element named after Lise Meitner. Let us understand the electron configuration of meitnerium through this article.

Electron configuration of meitnerium is [Rn] 5f14 6d7 7s2. Meitnerium is denoted by symbol “Mt” and its atomic number is 109. 278Mt is the most stable isotope of meitnerium having half-life period of 4.5 seconds. It is a synthetic element and can be created inside a laboratory.

We will understand some important facts about meitnerium like orbital diagram, ground state electron configuration etc., in the article below.

How to write meitnerium electron configuration?

Meitnerium contains 109 electrons and electron configuration of any element can be written by following the set of steps mentioned below:

  • According to Aufbau’s principle, electrons must be filled up with the order of increasing energy of orbitals available in an atom.
  • Pauli’s exclusion principle depicts that pairing of electrons will take place after each orbital contains at least 1 electron.
  • Spins of electrons in a particular orbital will be in accordance with Hund’s rule.

Meitnerium electron configuration diagram

According to this electron configuration diagram, the electron configuration of meitnerium can be explained easily. The orbitals are filled in their increasing order of energies.

Meitnerium electron configuration diagram

Meitnerium electron configuration notation

The electron configuration notation for Mt is [Rn] 5f14 6d7 7s2.

Meitnerium unabbreviated electron configuration

The unabbreviated electron configuration for meitnerium is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d7 7s2.

Ground state meitnerium electron configuration

The ground state electron configuration for meitnerium is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d7.

Excited state of meitnerium electron configuration

The excited state of meitnerium electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d5.

Ground state meitnerium orbital diagram

Orbital diagram of meitnerium explains that all the orbitals that is s, p & f are filled with their full capacity but only 6d orbital have 7 electrons but it can hold up to 14 electrons in it.

Ground state meitnerium orbital diagram


This article concludes that meitnerium is a very heavy and unstable synthetic radioactive element with a half-life period of only some seconds. It can be prepared in laboratory to perform certain chemical reactions.

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