Periodicity (Chemistry)

An excellent series that describes the history of Chemistry.

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I think this is a great way to get interessted in science and specifically chemistry. Aired January 21, 2010 on BBC Four.

 
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Chemical Periodicity

A page dedicated to trends noticible in the periodic table of elements. This page contains some well designed graphs and the information is concise.

 
 
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Wikipedia's take on periodic trends

This wiki gives explanations of periodic trends in atomic number, ionization potential, electron affinity, electronegativity, metallic character and atomic emmisions. As usual it is a pretty thorough explanation.

 
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A video that shows periodic trends

This video not only shows the theory behind periodic trends but performs some actual experiments to help the information stick. One example is the reactivity of alkali metals. This video is about 10 minutes long but you will learn a lot.

 
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