Octsepttrium (Ost)

Octsepttrium is the systematic name of the theoretical 873-и element in the periodic table with a symbol of Ost and atomic number of 873. Octsepttrium, also known as element 873, has осемстотин седемдесет и три protons in its nucleus, and осемстотин седемдесет и три electrons in its shells.