Moscovium
Definition and meaning of Moscovium in chemistry.
Moscovium is a synthetic, exceptionally radioactive element with the symbol Mc and atomic number 115. It is a superheavy transactinide element that exists only for fractions of a second in specialized laboratories before decaying.
In more detail
Moscovium is located in group 15 and period 7 of the periodic table, placing it immediately below bismuth in the nitrogen group. Although positioned alongside the pnictogens, relativistic spin-orbit coupling predicts that moscovium will display distinct chemical properties, likely favoring a +1 or +3 oxidation state instead of the +5 state common in lighter group members. The most stable isotope discovered so far is moscovium-290, which undergoes alpha decay with a brief half-life of roughly 0.65 seconds. This incredibly short lifespan prevents the accumulation of macroscopic quantities, restricting all empirical studies to isolated, individual atoms. Consequently, the physical appearance, solid state structure, and bulk chemical properties of moscovium remain entirely theoretical.
Key facts
| Field | General Chemistry |
|---|---|
| Symbol | Mc |
| Atomic number | 115 |
| Atomic mass | [290] u |
| Category | Unknown |
| State at room temperature | Expected to be a solid |
| Year discovered | 2003 |
| Discoverer | Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory |
Moscovium is generated for nuclear research by bombarding a target of americium-243 with accelerated calcium-48 ions.
Frequently asked questions
Why is moscovium so difficult to study?
Its most stable isotope decays in less than a second, meaning it disappears almost immediately after it is synthesized.
Where does moscovium get its name?
It is named after the Moscow region in Russia, honoring the Joint Institute for Nuclear Research located in Dubna.