Septbiennium (Sbe)

Septbiennium is the systematic name of the theoretical 729'инчи element in the periodic table with a symbol of Sbe and atomic number of 729. Septbiennium, also known as element 729, has жети жүз жыйырма тогуз protons in its nucleus, and жети жүз жыйырма тогуз electrons in its shells.