Biennseptium (Bes)

Biennseptium is the systematic name of the theoretical ٢٩٧. element in the periodic table with a symbol of Bes and atomic number of 297. Biennseptium, also known as element 297, has مائتان وسبعة وتسعون protons in its nucleus, and مائتان وسبعة وتسعون electrons in its shells.