3.19—Apply the electron-pair repulsion theory to predict the shapes of, and bond angles in, molecules and ions analogous to those

Be able to apply the electron-pair repulsion theory to predict the shapes of, and bond angles in, molecules and ions analogous to those in 3.18 3D: Metallic bonding Students will be assessed on their ability to:.

Use —apply the electron-pair repulsion theory to predict the shapes of, and bond angles in, molecules and ions analogous to those to connect the rule to the data and decision in the question.

This matters because —apply the electron-pair repulsion theory to predict the shapes of, and bond angles in, molecules and ions analogous to those determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —apply the electron-pair repulsion theory to predict the shapes of, and bond angles in, molecules and ions analogous to those to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —Apply the electron-pair repulsion theory to predict the shapes of, and bond angles in, molecules and ions analogous to those is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.