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 ...

Developing the periodic table The periodic table was developed by grouping elements with similar properties. This, together with a later arrangement by atomic weight, led to a repeating pattern of ...

and all the elements in group 0 are unreactive non-metals. The zigzag, staircase, line in the diagram of the periodic table above separates the metals, on the left, from non-metals, on the right.

To start with, the rare earth elements occupy the lanthanide series on the periodic table – the top row of the two that are often split off the main table, a lot like Alaska and Hawaii are ...

This year marks the 150th anniversary of the publication of Mendeleev’s Periodic Table of Chemical Elements in 1869. In celebration, the United Nations Educational, Scientific, and Cultural ...

Sources of rare earth elements are frequently associated with volcanoes, dormant or otherwise. Here on Earth, rare-earth ...

In addition to the potential for mining valuable rare earth metals, scientists are eager to learn more about their impacts to ...

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