Unennennium (Uee)

Unennennium is the systematic name of the theoretical 199. element in the periodic table with a symbol of Uee and atomic number of 199. Unennennium, also known as element 199, has εκατόν εννενήντα εννέα protons in its nucleus, and εκατόν εννενήντα εννέα electrons in its shells.