Pentpenttrium (Ppt)
Pentpenttrium is the systematic name of the theoretical 553. element in the periodic table with a symbol of Ppt and atomic number of 553. Pentpenttrium, also known as element 553, has ħames mija u tlieta u ħamsin protons in its nucleus, and ħames mija u tlieta u ħamsin electrons in its shells.