Mrs Roberts: Well, the modern periodic table shows us all of the elements ... Some element symbols are simple. For example, oxygen is O.Others aren’t as straightforward. For example, the element ...

Take your pick from this collection of links about elements and the periodic table! Build an element ball ... the connection of alchemy to modern day chemistry, and some fun activities to experience a ...

In 1843, Leopold Gmelin worked with the Dobereiner’s system and developed a table of 55 elements that contained many of the similar relationships later found in the modern periodic table. Then in 1857 ...

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 ...