Give your chemistry students a focused look at why atomic models changed over with ninety questions built for real classroom use, whether you are starting a new unit or reviewing before a test.
Students will answer questions such as "How did the introduction of the neutron resolve inconsistencies in atomic mass?", "Which model of the atom incorporated wave-particle duality?", and "What evidence led to the rejection of the Plum Pudding Model?"
Each worksheet reviews the same core ideas from a different angle. Use them across a week or unit so students see the material three times without it ever feeling repetitive.
This set is part of a standards aligned chemistry unit. The unit also covers Atomic Number, Mass Number, Isotopes and Average Atomic Mass, Quantum Model as a Predictive, Electron Configurations as, Valence Electrons and Chemical, and Excited Electrons and Observable, all in the same three worksheet format, so your classroom routine stays familiar while the topic changes.
Suitable for Grade 9-12 chemistry classes, and for review at any point in the school year. This set is aligned to Virginia SOL standard CH.2e.
