Pentoctseptium (Pos)

Pentoctseptium is the systematic name of the theoretical 587वाँ element in the periodic table with a symbol of Pos and atomic number of 587. Pentoctseptium, also known as element 587, has पाँच सौ सत्तासी protons in its nucleus, and पाँच सौ सत्तासी electrons in its shells.