The super-heavy element 117 ununseptium has been created in a German lab. It is the heaviest element to have ever been created. One atom of ununseptium outweighs an atom of lead by 40 percent.
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Ununseptium: New Super-Heavy Element 117 Created by German Scientists
The super-heavy element 117 ununseptium has been created in a German lab. It is the heaviest element to have ever been created. One atom of ununseptium outweighs an atom of lead by 40 percent.
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