Atomic and Electron Structure

Understanding atomic structure provides a central, unifying principle for chemistry. Activities, simulations, and models highlight the remarkable discoveries of the atomic age!


Light, Energy, and Electron Structure

Are electrons waves or particles? Yes! Quantum nature of light reveals electron energy levels.

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Solving The Structure of the Atom

Think of the atom as a “black box.” How do we unlock the box?

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Isotopes and Atomic Mass

What is the relationship between the atomic mass of an element and the mass of each isotope?

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Flame Tests

Flame tests produce beautiful colors, and a way to identify elements and explain their electron energy levels.

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Electron Configuration

Reduce the inherent uncertainty in our knowledge of electron structure by using physical models and analogies.

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