The periodic table has to be one of the most recognizable symbols of science, rivaled by the double helix and few others. Almost everyone should recognize its shape, however dimly, from a high school ...

Richard Wilson relates how the rare, highly radioactive, highly toxic element protactinium puzzled chemists for a long time, and was discovered and named twice from two different isotopes before ...

We have recently pointed out 1 that element 93 should have, according to the Periodic Law, other properties than those displayed by Fermi's element 93 2, and we found, on repeating his experiments ...

Confirmatory evidence for the existence of element 115 has been reported by an international research team that successfully used X-ray detection methods for the first time. The new work should ...

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