Pentennunium (Peu)

Pentennunium is the systematic name of the theoretical 591. element in the periodic table with a symbol of Peu and atomic number of 591. Pentennunium, also known as element 591, has հինգ­հարյուր իննասուն­մեկ protons in its nucleus, and հինգ­հարյուր իննասուն­մեկ electrons in its shells.