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The heaviest elements, such as tennessine with 117 protons, aren’t created by nature at all.

Some of the histories invoked by the pictures and text are complex, but others are easily read: Tennessine is hailed in the form of a whiskey bottle, and Sodium, the most basic substance celebrated here, inspires 11 poems.

Claes Fahlander, a nuclear physicist at Lund University in Sweden, expects that experimental results will eventually support the claims for moscovium and tennessine.

He walks around with a radiation dosimeter around his neckto measure his exposureanda lapel pin that reads “Ts,” for Tennessine, atomic number 117, a recently created element whose name honors the state that is home to Oak Ridge.

Please welcome to the periodic table: nihonium, moscovium, tennessine and oganesson.