The periodic table organizes chemical elements based on atomic weight, electron configurations, and chemical properties, ...

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 ...

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 ...

Image caption, The element germanium was discovered in 1886. Its properties were similar to the predicted ones of Mendeleev’s ‘eka-silicon’. The modern periodic table has no gaps and has ...

UT-Battelle, the managing contractor of ORNL, is donating new charts of the periodic table to public middle and high schools in Tennessee to mark the discovery of the element tennessine.

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.