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 ...

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

Can you believe the periodic table has been around for over 150 years? Take this quiz to see if you can find the elements. What information do we collect from this quiz? The periodic table is a ...

Can France claim the first periodic table? Probably not, but a French Geology Professor made ... bromine), and tellurium similar to the group 6 elements (oxygen, sulphur, selenium), so he swapped them ...

National Periodic Table Day, observed annually on February 7, honors one of the most significant achievements in scientific ...

The table shows the melting points of five alkali metals. Use this information to describe how melting point changes in group 1.

The periodic table of elements (often known simply as the periodic table) has been helping scientists with their work for a little over 150 years. The handy visual reference guide organizes known ...

As with all elements on the periodic table, the element's number corresponds ... green men and incredible spacecraft, we're ...

The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...