Mrs Roberts: Well, the modern periodic table shows us all of the elements arranged in rows, which are called periods. It has changed a lot over the years as we've learned more and more about atoms.
The Periodic Table is an amazing chemistry tool that is organized with elements in order of increasing atomic number. The properties of the element change as you move across the row, but are similar ...
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 ...