105

Dubnium

Transition MetalSolid
Atomic Number105
Atomic Mass268 u
CategoryTransition Metal
State at Room TempSolid
Year Discovered1968

About Dubnium

Named for Dubna, the Russian science city whose team co-discovered it, settling one of the bitterest naming disputes. Almost nothing is known of its bulk properties: individual atoms decay within days. Careful chemistry on single atoms shows dubnium behaves like a heavier niobium, confirming the periodic table still works this far out.

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