Some years ago at the University of North Carolina at Chapel Hill, I taught a one-semester inorganic course for BS chemistry majors. During the class we covered all the noncarbon elements in a ...
The first version of Mendeleev’s periodic table, published in 1869, was reportedly completed in just one day. Historians have pieced together what happened during that day. On the morning of February ...
A MODERN table of chemical elements must show electronic configurations as well as the variation in the properties of the elements with atomic number. It should also include the lanthanide and ...
More than a thousand different versions of the periodic table have been created since Dmitri Mendeleev drew the first 150 years ago – but why is one version more familiar to us than practically every ...
McGill University provides funding as a member of The Conversation CA. McGill University provides funding as a member of The Conversation CA-FR. The United Nations announced 2019 as the International ...
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