The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

Can France claim the first periodic table? Probably not, but a French Geology Professor made a significant advance towards it, even though at the time few people were aware of it. Alexandre Béguyer de ...

Listen to the full series on BBC Sounds ... To make iodine line up with chlorine and bromine in his table, Mendeleev swapped the positions of iodine and tellurium.

Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard When you purchase through links on our site, we may earn an affiliate ...

The ions formed have a full outer electron shell, so are very stable. See the study guide on groups in the periodic table for more information.

Our collective perception of flame is clouded. When asked to picture a flame, most people probably envision an orange streak ...

This last facet of her story is at the core of Dava Sobel’s new book, The Elements of Marie Curie, which follows 2016’s The ...

Although metal ions are central to all of biochemistry, a group of elements clustered in the early part of the periodic table—carbon, nitrogen, oxygen and phosphorus—are highly represented in ...

For decades, scientists have looked for materials that could make superconductivity -- the lossless transmission of electricity -- possible at higher temperatures, such as room temperature. That would ...