Meyer was just four years older than Mendeleev, and produced several Periodic Tables between 1864-1870. His first table contained just 28 elements, organised by their valency (how many other atoms ...

Of particular interest is the naming of element 118. Because element 118 falls within group 18 of the periodic table, it is a noble gas, with a particular naming pattern. each of the elements in ...

which give the periodic table its name. Elements with similar properties are arranged to form columns (groups). The periodic table is now a thing of both beauty and practical use, says Dr Wothers.

A chemical element is one of those squares on ... It is positioned in group 7 of the periodic table because it has seven electrons in the outermost shell of electrons. The trouble is that chlorine ...

Scientists have found that our bodies need 28 different elements to function properly. These are almost one-quarter of the periodic table and are mainly found in the first four periods.

which states that the properties of the chemical elements exhibit a periodic dependence on their atomic numbers. The table is divided into four roughly rectangular areas called blocks. The rows of the ...