Hexoctseptium (Hos)

Hexoctseptium is the systematic name of the theoretical 687. element in the periodic table with a symbol of Hos and atomic number of 687. Hexoctseptium, also known as element 687, has sechs­hundert­sieben­und­achtzig protons in its nucleus, and sechs­hundert­sieben­und­achtzig electrons in its shells.