Octennunium (Oeu)

Octennunium is the systematic name of the theoretical 891. element in the periodic table with a symbol of Oeu and atomic number of 891. Octennunium, also known as element 891, has οκτακόσια εννενήντα ένα protons in its nucleus, and οκτακόσια εννενήντα ένα electrons in its shells.