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It's official: Four super-heavy elements to be added to the periodic table

It's official: Four super-heavy elements to be added to the periodic table

The periodic table is about to get a little bit longer, thanks to the addition of four new super-heavy elements.

The discoveries of elements 113, 115, 117 and 118 were officially confirmed late last week by the International Union of Pure and Applied Chemistry. The group is tasked with vetting the man-made elements seeking a permanent spot on the iconic chart that adorns chemistry classrooms around the world.

The new elements are known as super-heavy elements because the nuclei of their atoms are so enormous. Element...

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