Periodic Table and Electron Configurations

Valance electrons play a big role in an element’s reactivity and its place in the periodic table. Students will draw model atoms showing their placement in the periodic table. This will allow them to see a trend in the number of valance electrons in each periodic group and why certain groups are more reactive than others. Doing this gives students a clear picture of some very important periodic trends.

What’s Included

Student “Atom’s Family” worksheet with a mini lesson on valance electrons. Students will draw the electron configuration and identify the number of neutrons and protons for each atom. Atoms are arranged in their places in the periodic table.

Periodic table with labeled groups, periods and a guide for reading the periodic squares.

Teacher’s key which can be used as an example page that can be used to grade or display to students if you decide to lead them through this activity or to have them grade their own papers.

Topics Addressed

Valance Electrons

Energy Levels

Reactive

Atomic Number

Atomic Mass

Protons

Neutrons

Electrons

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