Octsepttrium (Ost)

Octsepttrium is the systematic name of the theoretical 873. element in the periodic table with a symbol of Ost and atomic number of 873. Octsepttrium, also known as element 873, has tmien mija u tlieta u sebgħin protons in its nucleus, and tmien mija u tlieta u sebgħin electrons in its shells.