Discover the history, structure, and importance of the periodic table of elements, from Mendeleev’s discovery to modern scientific applications. When you purchase through links on our site ...

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 ...

We used Pauling's definition to calculate electronegativity under normal conditions. We were amazed to discover that his scale did ... which is very practical and accurately reproduces both molecules' ...