Pentseptennium (Pse)

Pentseptennium is the systematic name of the theoretical 579-и element in the periodic table with a symbol of Pse and atomic number of 579. Pentseptennium, also known as element 579, has петстотин седемдесет и девет protons in its nucleus, and петстотин седемдесет и девет electrons in its shells.