Octseptseptium (Oss)

Octseptseptium is the systematic name of the theoretical 877:e element in the periodic table with a symbol of Oss and atomic number of 877. Octseptseptium, also known as element 877, has åtta­hundra­sjuttio­sju protons in its nucleus, and åtta­hundra­sjuttio­sju electrons in its shells.