Pentsepttrium (Pst)

Pentsepttrium is the systematic name of the theoretical 573ú element in the periodic table with a symbol of Pst and atomic number of 573. Pentsepttrium, also known as element 573, has cúig chéad seachtó a trí protons in its nucleus, and cúig chéad seachtó a trí electrons in its shells.