Pentbinilium (Pbn)

Pentbinilium is the systematic name of the theoretical ٥٢٠. element in the periodic table with a symbol of Pbn and atomic number of 520. Pentbinilium, also known as element 520, has خمسة مائة وعشرون protons in its nucleus, and خمسة مائة وعشرون electrons in its shells.