1. The elements are arranged by energy levels, valence electrons, what group its on (Alkali Metals, Alakine Earth Metals, Boron Family, etc.), and forms ( metals, nonmetals, metalliods). 2. The periodic table tells scientists how reactive an element is, if it is a metal, nonmetal, or metalliod, and what group it's in. 3. Every element in a group has the same number of valance electrons ( They all have the same reactivity). 4. Where is the chart? I can't view it if it is there.
The Scientific method can help resolve problems logically. The scientific method is a process that involves an experiment and the steps for doing that experiment.
