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Elemental building blocks -- Chemical discoveries -- Inside an atom -- Periodic table of elements -- Reactions and uses -- Hydrogen -- Alkali metals -- Alkaline earth metals -- Transition metals -- ...

A team of Russian and American scientists announced today the creation of several atoms of the previously unknown element 117. The discovery of “ununseptium” will eventually fill a longtime gap on the ...

On a stage in the United Nations Educational, Scientific, and Cultural Organization headquarters in Paris, Yuri Oganessian holds a microphone in one hand and a small remote control in the other. Over ...