Introduction to the quantum mechanical model of the atom: Thinking about electrons as probabilistic matter waves using the de Broglie wavelength, the Schrodinger equation, and the Heisenberg uncertainty principle. Electron spin and the...

Describe how the model of the atom advanced as scientific knowledge increased. This lesson is 3 of 3 in the series titled "Models of the Atom."

Brief explanation of six major models of the atom along with illustrations. Covers the Greek model (Democritus), John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and the modern electron cloud or quantum mechanics model.

Students work as engineers to learn about the properties of molecules and how they move in 3D space through the use of LEGO MINDSTORMS NXT robotics. They design and build molecular models and use different robotic sensors to control the...

A slideshow looking at the contributions of scientists over time to our understanding of atomic theory. Looks at models of the atom developed by Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick, as...

A detailed slideshow for Grade 8 students that looks at the history of our understanding of atoms. Looks at the ideas presented by Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, and Niels Bohr, and the modern-day wave model. A...

A tutorial that presents models of the atom proposed by John Dalton, J.J. Thomson, Ernest Rutherford, and Niels Bohr. Each is supported by an animated illustration. Includes comprehension questions and a quiz at the end.

Illustrated instructions for how to make a model of an atom (an atom mobile).

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will distinguish between the three main subatomic particles and understand the contributions of J. J. Thomson, Robert...

[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.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

[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.

In this lab, young scholars investigate basic electron structure by making a model using pennies and different sized filter papers.

A description of quantum theory, the Bohr model of the atom, the quantum mechanical atom, the Scrodinger equation, and quantum numbers.

A classroom wiki where students present profiles of scientists who developed models of the atom or who contributed to the understanding of atomic theory. Covers Democritus, Aristotle, John Dalton, J.J. Thomson, Ernest Rutherford, Marie...

Describe how the model of the atom advanced as scientific knowledge increased. This lesson is 2 of 3 in the series titled "Models of the Atom."

Describe how the model of the atom advanced as scientific knowledge increased. This lesson is 1 of 3 in the series titled "Models of the Atom."

The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section deals with chemical bonds and seeks to answer the question, why do chemical bonds form?

Looks at the scientists who developed the model of the atom by building on previous scientists' discoveries about its structure.

Short slideshow looking at the history of models of the atom, including the contributions of Aristotle, Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, and Niels Bohr.

Introduces learners to atomic models of the past and present, focusing on the orbital model and an explanation of its basis. Learners then have the opportunity to "make an atom" and contrast it with an ion, followed by an isotope. The...

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 discovery of the nucleus and his planetary model of the atom.

Article explaining the legacy of John Dalton. His research into gases led to his gas laws and then his proposed atomic model. The flaws in his atomic theory are discussed also. (Jan. 20, 2016)