Hextrioctium (Hto)

Hextrioctium is the systematic name of the theoretical 638वाँ element in the periodic table with a symbol of Hto and atomic number of 638. Hextrioctium, also known as element 638, has छह सौ अड़तीस protons in its nucleus, and छह सौ अड़तीस electrons in its shells.