Hexbiunium (Hbu)

Hexbiunium is the systematic name of the theoretical ٦٢١. element in the periodic table with a symbol of Hbu and atomic number of 621. Hexbiunium, also known as element 621, has ستة مائة وواحد وعشرون protons in its nucleus, and ستة مائة وواحد وعشرون electrons in its shells.