Octhexhexium (Ohh)
Octhexhexium is the systematic name of the theoretical 866. element in the periodic table with a symbol of Ohh and atomic number of 866. Octhexhexium, also known as element 866, has восемьсот шестьдесят шесть protons in its nucleus, and восемьсот шестьдесят шесть electrons in its shells.