This worksheet guides students to calculate ion charges, protons, and electrons based on given information. The fact that you cannot subtract protons often confuses students, and this misconception is addressed right from the beginning. Whether it's for homework, classwork practice, a review activity, or used as an intervention, your students WILL have success with calculating ion charges. Students get MANY at-bats with calculating ion charges--so much so that you shouldn't have ANYONE still con