Octseptquadium (Osq)
Octseptquadium is the systematic name of the theoretical 874'inci element in the periodic table with a symbol of Osq and atomic number of 874. Octseptquadium, also known as element 874, has səkkiz yüz yetmiş dörd protons in its nucleus, and səkkiz yüz yetmiş dörd electrons in its shells.