Penthexhexium (Phh)

Penthexhexium is the systematic name of the theoretical 566. element in the periodic table with a symbol of Phh and atomic number of 566. Penthexhexium, also known as element 566, has penki šimtai šešiasdešimt šeši protons in its nucleus, and penki šimtai šešiasdešimt šeši electrons in its shells.