Mrs Roberts: Well, the modern periodic table shows us all of the elements arranged in rows, which are called periods. It has changed a lot over the years as we've learned more and more about atoms.

When Dimitri Mendeleev published the first periodic table 150 years ago, only about half as many elements were known as today. Over the ensuing decades, researchers have added new names to the ...

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, we ...

In a modern table there are 15 and, together with the actinides below them, ... This part of the periodic table was the playground of Glenn Seaborg, an American physicist.

In this wonderful riff on the periodic table, science communicator and PhD student Jamie Gallagher mapped out where the scientists were working when they made their discoveries. Since Lothar Meyer ...

The credit for creating the modern periodic table goes to Dmitri Mendeleev, a Russian chemist, in 1869. While several scientists before him had attempted to classify elements, Mendeleev was the ...

Given a 90-degree turn the modern periodic table still resembles Mendeleev’s effort. But once you give Mendeleev’s table a 90-degree turn, the similarity to the modern version becomes apparent.