Octtriunium (Otu)
Octtriunium is the systematic name of the theoretical 831. element in the periodic table with a symbol of Otu and atomic number of 831. Octtriunium, also known as element 831, has שמונה מאות שלושים ואחת protons in its nucleus, and שמונה מאות שלושים ואחת electrons in its shells.