Pentsepttrium (Pst)
Pentsepttrium is the systematic name of the theoretical ٥٧٣. element in the periodic table with a symbol of Pst and atomic number of 573. Pentsepttrium, also known as element 573, has خمسة مائة وثلاثة وسبعون protons in its nucleus, and خمسة مائة وثلاثة وسبعون electrons in its shells.