The Structure of the Atom
Guiding Question
How is the atom structured and how does this impact its properties?
Early Theories of Matter
Subatomic Particles and the Nuclear Atom
Online Interactive Lab: PHET Build an Atom
Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!
LEARNING TARGETS
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To help students develop a tactile familiarity of the subatomic particles and their interactions.
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To develop an understanding of how the subatomic particles determine the identity and properties of an element.
How Atoms Differ
Unstable Nuclei and Radioactive Decay
Online Interactive Lab: Types of Radiation
Work with different samples of radioactive materials and test the effectiveness of different types of shielding.
LEARNING TARGETS
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How many types of ionizing radiation are there?
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Which type of emitted particle do you think is the most massive? Least massive?
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Which type of radiation do you think would be the most harmful for humans to be exposed to?
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Which type of radiation do you think would be the most harmful for humans if ingested?
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If radon is an alpha-emitter, why are we concerned about it accumulating in basements?