Please help!!!!

A naïve young chemist believes she has discovered a new element. It has a mass number of 285 and is the heaviest element known to exist. The chemist was so enamored with Superman trivia, she proposed the name of the element as Superonium, symbol Sp. Has a new element been discovered? Defend your answer with either an isotopic notation of this element or description and an explanation of what other information the chemist needs to include with her results and why.