Hexhexhexium (Hhh)
Hexhexhexium is the systematic name of the theoretical 666ú element in the periodic table with a symbol of Hhh and atomic number of 666. Hexhexhexium, also known as element 666, has sé chéad seasca a sé protons in its nucleus, and sé chéad seasca a sé electrons in its shells.