Test: Middle School Physical Science

4.

Screen shot 2020 05 20 at 9.10.49 am

Based on the image above, elements in the bottom half of the periodic table have: 

higher atomic masses because they have more electrons

higher atomic masses because they have more protons and neutrons

higher electronegativity because of the reactivity

smaller atomic radii because of the reactivity

4/10 questions

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