Penthexhexium (Phh)
Penthexhexium is the systematic name of the theoretical ที่ 566 element in the periodic table with a symbol of Phh and atomic number of 566. Penthexhexium, also known as element 566, has ห้าร้อยหกสิบหก protons in its nucleus, and ห้าร้อยหกสิบหก electrons in its shells.