<p>1.Some representative groups and families such as sulfur family, halogen family, nitrogen family and metals.</p>
<p>2.Carbon and Organic Chem such as hydrocarbons, hydrocarbon derivatives and carbohydrates.</p>
<li>Nucleonics such as radioactivity, nuclear energy, radiation expore.</li>
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<p>Also I was wondering how hard is the lab portion of the test.</p>