The world's oldest classroom poster of the periodic table of elements, dating to 1885, has turned up in Scotland.

Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

At the far end of the periodic table is a realm where nothing is quite as it should be. The elements here, starting at atomic number 104 (rutherfordium), have never been found in nature. In fact ...

The periodic table is 150 – but it could have looked very different Through the years, plenty of hopefuls have pitched their own ideas for how the most famous graph in science should look ...

The scientist already had broken barriers when she joined an international mission to do something else unprecedented: Create Element 117.

The new interactive table features 44 elements in seven groups – Content, Architecture, Code, Credibility, Links, User and Performance.

Naturally occurring superheavy elements beyond those listed in the periodic table could potentially explain why asteroid 33 Polyhymnia is so dense, new research suggests.