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 ...

Elements in group 1 and group 2 are metals ... See the study guide on groups in the periodic table for more information.

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

Scientists have found that our bodies need 28 different elements to function properly. These are almost one-quarter of the periodic table and are mainly found in the first four periods.

In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic structures model how electrons are arranged in atoms. Groups in the periodic table - AQA ...