Nihonium is an element in the game. He used to be named Ununtrium.
"Say hello to ununtrium, element 113! Unfortunately, this element’s discovery wasn’t accepted by the IUPAC board. (If you’ve followed us for awhile you probably know this board very well.)
The results simply didn’t meet the criteria for discovery due to lack of connections to known nuclides, and the absence of cross-bombardments.
From what we’ve learned so far, scientists seem to be very fond of cross-bombardments. It’s a science thing!"
How To Change Nihonium
Bunsen Burner: Copernicium
Appearance: A pink element with white lips and blue eyelids. He looks like Amperium.
Voice sfx: "Uhh"
Extra info: 
How to pronounce his name: ni-HOH-nee-əm
Year he was discovered: 2003
Symbol: Nh (used to be Uut)