Recognizes the structural types and concepts and uses them appropriately. Coherent and integrated Consistency in statements related to number of electrons in the molecule, position in the periodic table, completeness of electron shells, atomic size and relative electronegativity. Recognizes the relationship between electronegativity and atomic size, and between bonding length and molecular arrangement. Does not make connections between concepts or recognize commonalties between molecules of the same types. Uses only some of the concepts.
Connections are correct and consistent but incomplete.
Appropriate representational form Converts diagrammatic data to tabular form that recognizes redundancies in the data. Converts tabular data to diagrams that show proper structural arrangements. Associates these arrangements with appropriate chemical terms. Does not draw diagrams or these are incorrect. Terms are not used or not used properly.