In this hands-on instructional activity, students use candy to construct models of nutrients (carbohydrates, proteins, and fats). Create visualizations that will aid in learning about dehydration synthesis and bond saturation in fat...

[Free Registration/Login may be required to access all resource tools.] Students explore how the study of the hydrogen emission spectrum led to the Bohr model of the atom, in which electrons exist in states of constant energy.

Explains the basic tenets of Dalton's atomic theory.

Describes J.J. Thomson's theory of atomic structure, called the 'Plum Pudding Model,' and how it was disproved by Ernest Rutherford.

[Free Registration/Login may be required to access all resource tools.] Rutherford's model of the atom was better than earlier models. But it wasn't the last word. Danish physicist Niels Bohr created a more accurate and useful model....

Learn about atomic structure and the multiple theories of atomic structure in this simulation.

A well designed clear tutorial explaining the energies involved in the Bohr model of the atom. Illustrations add to the clearly presented equations.

With this demonstration, students will learn to use computational thinking to better understand how the atomic number of an element affects how its electrons are configured.

[Free Registration/Login Required] This flipchart contains a 20 point multiple choice quiz on atomic history and modeling.

Explains how James Chadwick came to develop his atomic theory by building upon the work of other scientists.

[Free Registration/Login Required] How can we predict an atom's structure, if we cannot see an atom? Using the Rutherford's Gold Foil Experiment, make your own model and test out the model.

This lesson explains what is represented by the atomic mass, and how it varies from one element to the next. Module includes a slideshow and a quiz.

Explains what the electron model is and the scientists who contributed to its development.

A collection of lesson plans for helping students understand atomic composition. Site uses work samples, phenomena, assessment templates, and videos to plan lessons to describe the atomic composition of simple molecules.

Slideshow looking at the history of models of the atom, including those proposed by John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick. Discusses subatomic particles, including the numbers of protons, neutrons,...

[Free Registration/Login may be required to access all resource tools.] Rutherford's model of the atom was better than earlier models. But it wasn't the last word. Danish physicist Niels Bohr created a more accurate and useful model....

This activity allows young scholars to gain an understanding of the relationship between the mass and relative abundance of an isotope and its effect on the average atomic mass of the element. Students will be given a random sample of...

[Free Registration/Login may be required to access all resource tools.] Students will learn about the history of atomic theory, and the development of the Bohr model of the atom. Includes a simulation for exploring the Bohr Model.

This chemistry e-textbook provides students with AP-level reading and practice material on atomic structure and periodicity.

Presents models of the atom developed by Thomson, Rutherford, Bohr, and Schrodinger. Includes successes and failures of each, illustrations, and detailed descriptions. Also discusses Dirac's model of the atom and introduces quantum...

This lesson focuses on early ideas about the structure of an atom including John Dalton's plum pudding model and Ernest Rutherford's nuclear model. A link to a test is provided.

An introduction to the Standard Model, a theory which attempts to explain atomic structure using leptons, quarks, and force carrier particles.

This multi-day lesson plan helps students to understand how the models of the atom have changed and how quantum mechanics affects the electrons as they orbit the nucleus.

As part of the General Chemistry Virtual Textbook, this site examines a list of related topics (in hyperlink format) on the atom and the Periodic Table of elements. Topics from light, particles, and waves to the Bohr model, quantum...