| Atomic Mass | 289 |
|---|---|
| Electron Configuration | [Rn] 7s2 7p3 5f14 6d10(predicted) |
| Oxidation States | 1, 3 (prediction) |
| Year Discovered | 2003 |
| Atomic Mass | 289 |
|---|---|
| Electron Configuration | [Rn] 7s2 7p3 5f14 6d10(predicted) |
| Oxidation States | 1, 3 (prediction) |
| Year Discovered | 2003 |
| Element Name | Moscovium |
|---|---|
| Element Symbol | Mc |
| InChI | InChI=1S/Mc |
| InChIKey | QDXZEHQJHSHEQF-UHFFFAOYSA-N |
| Atomic Weight |
289 289 Relative Mass: 288.19274(62#) |
|---|---|
| Electron Configuration |
[Rn] 7s2 7p3 5f14 6d10(predicted) |
| Atomic Radius |
Empirical Atomic Radius : empirical: 187 pm (predicted) |
| Oxidation States |
1, 3 (prediction) |
| Physical Description |
Expected to be a Solid |
| Element Classification |
Metal |
| Element Period Number |
7 |
| Element Group Number |
15 - Pnictogen |
| Melting Point |
670K(400°C,750°F)(predicted) |
| Boiling Point |
~1400K(~1100°C,~2000°F)(predicted) |
| Estimated Crustal Abundance |
Not Applicable |
| Estimated Oceanic Abundance |
Not Applicable |
On February 2, 2004, scientists working at the Joint Institute for Nuclear Research in Dubna, Russia, along with scientists from the U.S. Department of Energy's Lawrence Livermore National Laboratory and Oak Ridge National Laboratory, announced the creation of moscovium. In experiments performed between July 14, 2003 and August 10, 2003, atoms of americium-243 were bombarded with ions of calcium-48 using a device called a cyclotron. This produced one atom of moscovium-287 and three atoms of moscovium-288. All four atoms quickly decayed into other elements. Moscovium's most stable isotope, moscovium-289, has a half-life of about 220 milliseconds. It decays into nihonium-285 through alpha decay.
On Novemer 28th, 2016, element 115 was named Moscovium with the symbol Mc. Moscovium is the Moscow region of Russia, which is home to much of Russia’s superheavy element research. Muscovium was discovered by together by the Joint Institute for Nuclear Research, Dubna (Russia), Oak Ridge National Laboratory (USA), Vanderbilt University (USA) and Lawrence Livermore National Laboratory (USA).
Moscovium does not occur naturally in the Earth’s crust. The name moscovium and the symbol Mc, are the accepted ones for element 115. The name is in recognition of the Moscow region and honors the ancient Russian land that is home to the Joint Institute for Nuclear Research (JIRN), where the discovery experiments were conducted using the Dubna gas filled recoil separator in combination with the heavy ion accelerator capabilities of the Flerov Laboratory of Nuclear Reactions.
48Ca and 243Am were bombarded together in a cyclotron during a series of experiments from 14 July to 10 August 2003 (Fig. IUPAC.115.1). In February 2004, the results from these experiments were released in a report that stated “ununpentium” had been synthesized. This initial name means “115” in the IUPAC systematic naming scheme, which combines Latin and Greek names to produce un-un-pentium for 115. Moscovium has no known isotopic applications aside from scientific research.
![Fig. IUPAC.115.1: Accelerated ⁴⁸Ca ion colliding with a ²⁴³Am atom in a cyclotron creating moscovium and nihonium. (Diagram Source: Thomas Tegge, Lawrence Livermore National Laboratory) [672], [673].](https://pubchem.ncbi.nlm.nih.gov/images/iupac/j_pac-2015-0703_fig_153.jpg)
Since only a few atoms of moscovium have ever been produced, it currently has no uses outside of basic scientific research.
See more information at the Moscovium compound page.
| Stable Isotope Count | 0 |
|---|
| Nuclide | Atomic Mass and Uncertainty [u] | Half Life and Uncertainty | Discovery Year | Decay Modes, Intensities and Uncertainties [%] |
|---|---|---|---|---|
| 287Mc | 287.190820 ± 0.000475 [Estimated] | 60 ms ± 30 | 2004 | α=100% |
| 288Mc | 288.192879 ± 0.000575 [Estimated] | 177 ms ± 20 | 2004 | α=100% |
| 289Mc | 289.193971 ± 0.000834 [Estimated] | 410 ms ± 150 | 2010 | α=100% |
| 290Mc | 290.196235 ± 0.000635 [Estimated] | 840 ms ± 360 | 2010 | α=100% |
| 291Mc | 291.197725 ± 0.000789 [Estimated] | 1 s [Estimated] | α ?; SF ? | |
| 292Mc | 292.200323 ± 0.000751 [Estimated] | 5 s [Estimated] | α ?; SF ? |
