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 ...

In fact, he was ill at the time so his colleague Nikolai Menschutkin made the announcement on his behalf – on 6 March at a meeting of the Russian Chemical Society. Mendeleev’s table listed elements in ...

However, he is remembered for his search for a pattern in inorganic chemistry. Just four years before Mendeleev announced his periodic table, Newlands noticed that there were similarities between ...

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 ...

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, atomic weight and the broad group they live in. It's no ...

Discover who created the periodic table of elements and how it works. Learn about Dmitri Mendeleev’s contributions, its ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

Hover over elements in this interactive representation of our Elements of Success Periodic Table to see details. If an element doesn't have a sponsor, click on it to sponsor today.

Electronegativity, an essential characteristic of all elements in the periodic table, measures an atom's ability to attract electrons towards itself within a chemical bond. This vital theoretical ...