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 ...

Just four years before Mendeleev announced his periodic table, Newlands noticed that there were similarities between elements with atomic weights that differed by seven. He called this The Law of ...

Well it's actually quite elemental—The Periodic Table of the Elements, that is. The whiz, bang, pop, and color are all possible by combining the most basic substances of which we know ...

Watch this video to find out more information on the periodic table close periodic tableA table which lists all of the chemical elements and arranges them in a way that is useful. It allows us to ...

Electronegativity, an essential characteristic of all elements in the periodic table, measures an atom's ability to attract ... as well as optical properties (like color). Chemists have come up with ...

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

There are currently 118 known elements on the periodic table, and we've put 20 of them below to create a brain game that ...