Pentnilpentium (Pnp)

Pentnilpentium is the systematic name of the theoretical 505. element in the periodic table with a symbol of Pnp and atomic number of 505. Pentnilpentium, also known as element 505, has fënnef­honnert­fënnef protons in its nucleus, and fënnef­honnert­fënnef electrons in its shells.