Pentunnilium (Pun)

Pentunnilium is the systematic name of the theoretical 510. element in the periodic table with a symbol of Pun and atomic number of 510. Pentunnilium, also known as element 510, has fimm­hundrað­og­tíggju protons in its nucleus, and fimm­hundrað­og­tíggju electrons in its shells.