Penthextrium (Pht)

Penthextrium is the systematic name of the theoretical 563e element in the periodic table with a symbol of Pht and atomic number of 563. Penthextrium, also known as element 563, has vijf­honderd­drie­ën­zestig protons in its nucleus, and vijf­honderd­drie­ën­zestig electrons in its shells.