Pentoctseptium (Pos)

Pentoctseptium is the systematic name of the theoretical 587. element in the periodic table with a symbol of Pos and atomic number of 587. Pentoctseptium, also known as element 587, has penki šimtai aštuoniasdešimt septyni protons in its nucleus, and penki šimtai aštuoniasdešimt septyni electrons in its shells.