Biunpentium (Bup)

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