Pentpenthexium (Pph)
Pentpenthexium is the systematic name of the theoretical ที่ 556 element in the periodic table with a symbol of Pph and atomic number of 556. Pentpenthexium, also known as element 556, has ห้าร้อยห้าสิบหก protons in its nucleus, and ห้าร้อยห้าสิบหก electrons in its shells.