Image caption, The element germanium was discovered in 1886. Its properties were similar to the predicted ones of Mendeleev’s ‘eka-silicon’. The modern periodic table has no gaps and has ...

The Periodic Table, showing naturally occurring elements up to uranium. Shading indicates stellar origin. Image may only be used with appropriate credit.

Image caption, The element germanium was discovered in 1886. Its properties were similar to the predicted ones of Mendeleev’s ‘eka-silicon’. The modern periodic table has no gaps and has ...

As part of the ChemClub's 10 th Anniversary (2015-2016), we asked clubs to create elements of the periodic table featuring a mole. To celebrate the International Year of the Periodic Table (IYPT) in ...

Test your knowledge and compete with other Live Science readers to see who can come top in our periodic table quiz. The ...

This puzzle shows many of the elements used to make transistors. The finished puzzle is a section of the periodic table, so the numbers on each tile are their atomic numbers - that means they ...

On 17 February 1869, Russian chemist Dmitri Mendeleev jotted down the symbols for the chemical elements, putting them in order according to their atomic weights and inventing the periodic table.