111
Roentgenium
Atomic Number111
Atomic Mass282 u
CategoryTransition Metal
State at Room TempSolid
Year Discovered1994
About Roentgenium
Named after Wilhelm Roentgen, discoverer of X-rays. Made in Darmstadt by fusing nickel and bismuth. Only a handful of atoms have been observed, lasting seconds at most. Sitting below gold in the table, it is predicted to be a noble metal that might even gleam, if enough of it could ever be gathered to see.
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