On 28 November 2024, it was officially named after the Moscow Oblast, in which the JINR is situated. Density (near r.t. ) Moscovium is an extremely radioactive element: its most stable known isotope, moscovium-290, has a half-life of only 0.65 seconds. In the periodic table, it is a p-block transactinide element.

Moscovium is the temporary name of a artificially produced radioactive chemical element that has the temporary symbol Mc and has the atomic number 115. It was discovered from the bombardment of atoms of Americium-243 with ions of calcium-48.