Periodic Table

This 118 element printable periodic table is perfect for kids or anyone who wants a clean-looking chart with atomic weights rounded to the usual two decimal points. You can also do exercises with it. It’s a lot less confusing for homework! 

The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends. The periodic table is an arrangement of all the elements known to man in accordance with their increasing atomic number and recurring chemical properties. They are assorted in a tabular arrangement wherein a row is a period and a column is a group.

Elements are arranged from left to right and top to bottom in the order of their increasing atomic numbers. Thus;

• Elements in the same group will have the same valence electron configuration and hence similar chemical properties.
  
• Whereas, elements in the same period will have an increasing order of valence electrons, therefore, as the energy level of the atom increases, the number of energy sub-levels per energy level increases.
  

The first 94 elements of the periodic table are naturally occurring, while the rest from 95 to 118 have only been synthesized in laboratories or nuclear reactors.

The organization of the periodic table can be used to derive relationships between the various element properties, and also to predict chemical properties and behaviours of undiscovered or newly synthesized elements.