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 ...

See if you can organize the first 25 elements of the periodic table in order in the quiz below. The periodic table as we know it is widely credited to Dmitri Mendeleev, a Russian chemist who kept ...

The periodic table’s arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius. Many scientists worked on the ...

Meyer's roots, however, were firmly in Germany. Meyer was just four years older than Mendeleev, and produced several Periodic Tables between 1864-1870. His first table contained just 28 elements, ...

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

Mrs Roberts: At its simplest, the periodic table is all the different elements arranged together in a chart. A Russian scientist called Dmitri Mendeleev produced one of the first practical ...

February 7 is National Periodic Table Day, when we celebrate the efforts of scientists over the centuries to figure out how different elements ...