Which is your favourite chemical element? To mark the International Year of the Periodic Table, our science journalists will be arguing for their pick from the 118 known elements. In this instalment, ...

Nuclear chemists and nuclear physicists at the University of Cologne provide experimental proof of a long-suspected atomic decay pathway. The article published in ‘Physical Review’ shows that ...

Over 150 years ago, when chemist Dmitri Mendeleev was developing the very first periodic table of elements, he included several empty spaces. Mendeleev, a visionary ...

When the periodic table was being put together in the late 1800s, a hole remained in the center of the middle row of transition metals where element 43 should be. This space stayed vacant until 1937, ...