Octseptquadium (Osq)
Octseptquadium is the systematic name of the theoretical 874ú element in the periodic table with a symbol of Osq and atomic number of 874. Octseptquadium, also known as element 874, has ocht gcéad seachtó a ceathair protons in its nucleus, and ocht gcéad seachtó a ceathair electrons in its shells.