Biunpentium (Bup)

Biunpentium is the systematic name of the theoretical ٢١٥. element in the periodic table with a symbol of Bup and atomic number of 215. Biunpentium, also known as element 215, has مائتان وخمسة عشر protons in its nucleus, and مائتان وخمسة عشر electrons in its shells.