Unit 1: Atomic Structures and Properties

Students will understand the atomic theory of matter focusing on the structure of the atom and how it dictates behavior when in the presence of other atoms. Structure and behavior of atoms can be determined using the periodic table. Additional takeaways include:
- The mole allows different unit to be compared.
- Chemical formulas identify substances by their unique combination of atoms.
- Atoms and molecules can be identified by their electron distribution and energy.
The periodic table shows patterns in electronic structure and trend in atomic properties.

- Describe the components of and quantitative information from models and representations that illustrate particulate-level properties only.
- Identify a testable scientific question based on an observation, data, or a model.
- Explain chemical properties or phenomena using given chemical theories, models, and representations.
- Explain whether a model is consistent with chemical theories.
- Explain connection between particulate-level and macroscopic properties of a substance using models and representations.
- Identify quantities needed to solve a problem from given information.
- Identify an appropriate theory, definition, or mathematical relationship to solve a problem.
- Identify information presented graphically to solve a problem.

Score a 3 or higher on the unit 1 progress check using the AP score scale:

72-100% = 5

58-71% = 4

42-57% = 3

27-41% = 2

0-26% = 1