Unit 3: Atomic Structure

Students analyze conceptual, mathematical, and physical models of atoms. This unit also includes an overview of protons, neutrons, and electrons, as well as a periodic table of elements.

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8 Segments in this Unit

The different models of an atom.

Segment A: Atomic Models

In this segment, the students learn about different models of the atom, including Dalton’s model, Thomson’s model, Rutherford’s model, and the Bohr model.

The periodic table is the focus of this segment.

Segment B: The Periodic Table

The periodic table is the focus of this segment. The students explore periodic trends as well as atomic number and average atomic mass.

In this segment, the students build models of elements.

Segment C: Characteristics of Electrons

In this segment, students build models of atoms as they learn about characteristics of electrons. They also explore how quantum levels affect fireworks by performing a flame test.

The students create their own Bohr models.

Segment D: Periodic Trends Part I

Students explore the relationship between the properties of an atom and its location on the periodic table as well as about effective nuclear charge and electronegativity.

This segment examines ionization energy.

Segment E: Periodic Trends Part II

In this segment, the students make predictions about electronegativity and atomic radius across periods and columns.

Unit 3 Segment F of Chemistry Matters

Segment F: Electron Configuration Part I

This segment examines ionization energy and explains the process for writing the electron configuration of any element.

The students learn to make electron configurations in this segment.

Segment G: Electron Configuration Part II

The students learn to make electron configurations in this segment. Sublevels and orbitals are also discussed.

During this segment, special guest Mark Angeli.

Segment H: Configuration Lab Results and Fireworks

During this segment, special guest Mark Angeli explains the role of pyrotechnics in the making of fireworks.

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