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