Octsepttrium (Ost)

Octsepttrium is the systematic name of the theoretical 873-ші element in the periodic table with a symbol of Ost and atomic number of 873. Octsepttrium, also known as element 873, has сегіз жүз жетпіс үш protons in its nucleus, and сегіз жүз жетпіс үш electrons in its shells.