Pentennilium (Pen)

Pentennilium is the systematic name of the theoretical 590. element in the periodic table with a symbol of Pen and atomic number of 590. Pentennilium, also known as element 590, has ხუთას­ოთხმოცდა­ათი protons in its nucleus, and ხუთას­ოთხმოცდა­ათი electrons in its shells.