Many scientists worked on the problem of organizing the elements, but Dmitri Mendeleev published his first version of the periodic table in 1869, and is most often credited as its inventor. Since then ...

The periodic table of elements (often known simply as the periodic table) has been helping scientists with their work for a little over 150 years. The handy visual reference guide organizes known ...

The first recorded attempt at creating a system to organise ... 55 elements that contained many of the similar relationships later found in the modern periodic table. Then in 1857, Jean-Baptiste Dumas ...

More than 75 years after its initial discovery, scientists have created an organometallic molecule containing the ...

The Period Table of Endangered Elements presents elements facing ... Recently, Chemistry Solutions caught up with Michael Dayah, creator of ptable.com — one of the first online periodic tables. We ...

For the last fifty or so years, the periodic table has been incomplete. Elements after uranium on the periodic table have been synthesized for the past few decades, but there were always a few ...

However, the first scientific discovery of an element ... The zigzag, staircase, line in the diagram of the periodic table above separates the metals, on the left, from non-metals, on the right.