Pentoctseptium (Pos)

Pentoctseptium is the systematic name of the theoretical ที่ 587 element in the periodic table with a symbol of Pos and atomic number of 587. Pentoctseptium, also known as element 587, has ห้า​ร้อย​แปด​สิบ​เจ็ด protons in its nucleus, and ห้า​ร้อย​แปด​สิบ​เจ็ด electrons in its shells.