The complete version with artwork is available for purchase here (PDF ... organize the elements. In this respect, Newlands anticipated the modern organization of the periodic table, which ...

Maybe it's because this year marks the 150th anniversary of the Periodic Table of the Elements. It's considered the founding document of modern chemistry, one you may have studied in school.

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.