App
Carolina Biological Supply

Building Atoms, Ions, and Isotopes HD

For Students 7th - 12th
Atomic theory, a periodic table, and a place to practice making atom models without having to draw every proton, neutron, electron, and orbital! This resource is colorful, visually pleasing, and easy to use. 
Lesson Plan
Curated OER

If My Configurations are Correct

For Teachers 10th - 12th
Learners write the electron configuration of elements in the ground state. In this chemistry instructional activity, students draw how subatomic particles are arranged in the atom. They construct Lewis dot diagrams of valence electrons.