The periodic table has become an icon of science. Its rows and columns provide a tidy way of showcasing the elements — the ingredients that make up the universe. It seems obvious today, but it wasn’t ...

There are only a few developments that have organized the way we see the world. There is the classification system of the life sciences, which separated the natural world into kingdoms. There is the ...

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The Periodic Table of Chemical Elements, which was first published by Russian scientist Dmitri Mendeleev on Feb. 17, 1869, is celebrating its 150th anniversary this year. To mark the occasion, the ...

The story of the fifteenth element began in Hamburg, in 1669. The unsuccessful glassblower and alchemist Hennig Brandt was trying to find the philosopher’s stone, a mythical substance that could turn ...

In honor of the establishment of the periodic table 150 years ago, scientists around the world have dubbed 2019 the “International Year of the Periodic Table.” Eugene Hoshiko Associated Press Happy ...