Penthexhexium (Phh)

Penthexhexium is the systematic name of the theoretical 566a element in the periodic table with a symbol of Phh and atomic number of 566. Penthexhexium, also known as element 566, has cinci sute şasezeci şi şase protons in its nucleus, and cinci sute şasezeci şi şase electrons in its shells.