117
Tennessine
Atomic Number117
Atomic Mass294 u
CategoryHalogen
State at Room TempSolid
Year Discovered2010
About Tennessine
Named after Tennessee, honoring the Oak Ridge and Vanderbilt scientists who helped supply materials for its creation. Discovered in Dubna by firing calcium at a berkelium target that took two years to prepare. The second heaviest element ever made. A halogen by its position in the table, but its chemistry may turn out metallic.
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