Pentseptquadium (Psq)
Pentseptquadium is the systematic name of the theoretical 574ú element in the periodic table with a symbol of Psq and atomic number of 574. Pentseptquadium, also known as element 574, has cúig chéad seachtó a ceathair protons in its nucleus, and cúig chéad seachtó a ceathair electrons in its shells.