Pentpentunium (Ppu)

Pentpentunium is the systematic name of the theoretical ที่ 551 element in the periodic table with a symbol of Ppu and atomic number of 551. Pentpentunium, also known as element 551, has ห้า​ร้อย​ห้า​สิบ​เอ็ด protons in its nucleus, and ห้า​ร้อย​ห้า​สิบ​เอ็ด electrons in its shells.