These examples show that the students clearly understand what protons, neutrons and electrons are and how to calculate the number of each when given the proper information.This shows me that the students are meeting the outcome and will be able to move on to further topics.

These examples show that the students are not fully understanding what protons, neutrons and electrons are. They are confusing the different particles and the different charges as well as how you calculate the number of them. This shows me that we need to review the different particles and clarify what they are and how you calculate the number of them in each atom.

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