These elements are so massive that they do not fit in any of the seven rows that make up the periodic table. If they are ...

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 ...

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 ...

Carolyn Krause presents the second part of the three-part series on the Oak Ridge National Laboratory's role in the discovery ...

This year we celebrate the 150 th anniversary of Mendeleev’s achievement in formulating the structure of the periodic table that we use today. He announced his structure in 1869, but the challenge of ...

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 ...

Thomas Purdie, a chemistry professor who worked at St Andrews, purchased the periodic table of elements chart in 1888. It likely hung in his classroom for years until he retired in 1909.