Students will launch the investigation by using valence-electron evidence to predict bonding and reactivity, identify uncertainties, and develop initial questions that will guide their contributions to the Atomic Connections Museum.

Students will build the scientific and methodological foundation for a safe investigation by connecting main-group valence-electron patterns to bonding predictions, refining an investigable bulk-property question, and passing a peer-reviewed planning gate before collecting evidence.

Students will calibrate their measurement methods, conduct safe team-designed bulk-property investigations, and record traceable observations and measurements. They will then translate preliminary evidence and periodic patterns into annotated diagrams, reaction cards, particle models, and qualitative energy representations for their interactive evidence wall.

Students will analyze investigation evidence, challenge competing particle-level explanations, and revise an interactive periodic trends evidence wall through multiple feedback cycles. They will then demonstrate independent competency by predicting and defending the outcome of an unfamiliar main-group reaction.

Students will present, defend, and refine their interactive periodic trends evidence walls during the Atomic Connections Museum, then complete an individual performance task and reflection.