In the main page I have provided, there are  quite a number of websites for you to access and learn  more in order to practise questions and evaluate your knowledge.  If you wish to gather more information to compare properties of elements in certain group or period , say values like Ionisation potentials, electron affinities etc., you can click on the 

functional_form_ htm .and type in any phrase or key words that you are after.

However to make things easy, I am providing four datasheets showing the physical properties of certain groups of elements in the following links.


 Alkali metals


Alkaline earth metals


Halogens


Metalloids

In addition there are some links given on the right side in this window to get to data of certain categories of elements

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