Octoctseptium (Oos)

Octoctseptium is the systematic name of the theoretical 887'inci element in the periodic table with a symbol of Oos and atomic number of 887. Octoctseptium, also known as element 887, has səkkiz yüz səqsən yeddi protons in its nucleus, and səkkiz yüz səqsən yeddi electrons in its shells.