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Standard - 3.2.C.A5

MODELS

Recognize discoveries from Dalton (atomic theory), Thomson (the electron), Rutherford (the nucleus), and Bohr (planetary model of atom), and understand how each discovery leads to modern theory.

Describe Rutherford’s “gold foil” experiment that led to the discovery of the nuclear atom. Identify the major components (protons, neutrons, and electrons) of the nuclear atom and explain how they interact.

Eligible Content:
2 Total

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Assessment Anchor - CHEM.A.1: Properties and Classification of Matter
Anchor Descriptor - CHEM.A.1.1:
Identify and describe how observable and measurable properties can be used to classify and describe matter and energy.
Anchor Descriptor - CHEM.A.1.2: Compare the properties of mixtures.
Assessment Anchor - CHEM.A.2: Atomic Structure and the Periodic Table
Anchor Descriptor - CHEM.A.2.1: Explain how atomic theory serves as the basis for the study of matter.
Anchor Descriptor - CHEM.A.2.2: Describe the behavior of electrons in atoms.
Anchor Descriptor - CHEM.A.2.3: Explain how periodic trends in the properties of atoms allow for the prediction of physical and chemical properties.

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