Noted scientist Dmitri Mendeleev was touted as creating the first version of the Periodic Table. He showed that a certain arrangement of elements could lead us to understand the properties of other elements that were related to each other. He also used it to predict the properties of elements that were either not discovered yet or not normally found in nature. Elements on the table are ordered by their number of protons which is equivalent to their atomic number. The elements on the table can be found at room temperature in all of the various phases.
The worksheets range from finding basic information about particular elements that are found in nature to working on determine atomic operations such as neutron numbers.