Hexocthexium (Hoh)
Hexocthexium is the systematic name of the theoretical thứ 686 element in the periodic table with a symbol of Hoh and atomic number of 686. Hexocthexium, also known as element 686, has sáu trăm tám mươi sáu protons in its nucleus, and sáu trăm tám mươi sáu electrons in its shells.