Moscovium (symbol Mc, atomic number 115) is a synthetic superheavy element named after the Moscow region. It is classified as a post-transition metal and sits in group 15, period 7 of the periodic table.
Overview
Moscovium is the chemical element with atomic number 115 and the symbol Mc. With a standard atomic weight of [290], it is a post-transition metal. In the periodic table it occupies group 15 and period 7, and under standard conditions it is normally a solid. Moscovium is a synthetic superheavy element named after the Moscow region.
Atomic structure
An atom of Moscovium has 115 protons in its nucleus and, when neutral, 115 electrons arranged in the configuration [Rn] 5f14 6d10 7s2 7p3. Moscovium has no stable isotope; the value [290] refers to the mass number of its most stable or most commonly produced isotope.
Discovery and place in the table
Moscovium was discovered in 2003 by Joint Institute for Nuclear Research, LLNL. It follows Flerovium (Fl) and precedes Livermorium (Lv) in order of atomic number.
| Atomic number | 115 |
|---|---|
| Symbol | Mc |
| Atomic mass | [290] |
| Category | Post-transition metal |
| Group | 15 |
| Period | 7 |
| Electron configuration | [Rn] 5f14 6d10 7s2 7p3 |
| Phase at STP | Solid |
| Discovered | 2003 (Joint Institute for Nuclear Research, LLNL) |