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 ...

All the different elements are arranged in a chart called the periodic table. A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the 1869.

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 ...

But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can ...

but these elements cannot be seen in this version of the periodic table. Scientists Marie and Pierre Curie discovered two elements: radium and polonium. For these discoveries, Marie Curie received ...

This year we celebrate the 150 th anniversary of Mendeleev’s achievement in formulating the structure of the periodic table that we use today. He announced his structure in 1869, but the challenge of ...

The least electronegative element is cesium (0.79 on the Pauling scale and left in the second row from the bottom in the periodic table). Note that older texts list both francium and cesium as least ...