Penthexhexium (Phh)

Penthexhexium is the systematic name of the theoretical 566-шы element in the periodic table with a symbol of Phh and atomic number of 566. Penthexhexium, also known as element 566, has бес жүз алпыс алты protons in its nucleus, and бес жүз алпыс алты electrons in its shells.