Octpenttrium (Opt)

Octpenttrium is the systematic name of the theoretical 853e element in the periodic table with a symbol of Opt and atomic number of 853. Octpenttrium, also known as element 853, has acht­honderd­drie­ën­vijftig protons in its nucleus, and acht­honderd­drie­ën­vijftig electrons in its shells.