Unit Plan
CK-12 Foundation

Ck 12: Chemistry: Bohr's Atomic Model

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Explains the basic principles of the Bohr hydrogen atom.
Interactive
CK-12 Foundation

Ck 12: Plix: Bohr's Atomic Model

For Students 9th - 10th
[Free Registration/Login Required] Shown here are representations of three different models of the atom. Move the name labels to correctly title each of the models with the scientist who created them.
Activity
CK-12 Foundation

Ck 12: Plix: Energy Levels: Bohr's Atomic Model

For Students 9th - 10th
[Free Registration/Login Required] In this interactive you will excite an electron by dragging it into a higher orbital and use the table to see what wavelength of electromagnetic radiation is emitted when it returns to its lowest orbit....
PPT
Texas Education Agency

Texas Gateway: Atoms, Elements and the Periodic Table: The Atomic Model [Pdf]

For Students 9th - 10th
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...
Unit Plan
CK-12 Foundation

Ck 12: Atomic Theory

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will explain the law of conservation of mass, the law of definite proportions, and the law of multiple proportions. They will also...
PPT
Tom Richey

Slide Share: Atomic Models: Everything You Need to Know

For Students 8th
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...
Interactive
CK-12 Foundation

Ck 12: Physics Simulation: Atomic Colors

For Students 9th - 10th
[Free Registration/Login Required] Explore the Bohr model of atoms by studying the absorption and emission of light from simple gases in the context of starlight using this interactive simulation. A PDF worksheet and a video tutorial are...
Unit Plan
CK-12 Foundation

Ck 12: The Bohr and Quantum Models of the Atom

For Students 9th - 10th
[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.
Handout
PBS

Pbs: People & Discoveries Niels Bohr

For Students 9th - 10th
A wonderful PBS biography of a great man. This contains many personal touches, yet does a fine job of describing Bohr's scientific work. But it's best at Bohr the man. Nice quotes, one in the middle, one at the end.
PPT
Other

Slide Player: History of the Atomic Model

For Students 9th - 10th
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.
eBook
Simon Fraser University

Chem1 Virtual Textbook: Bohr's Theory

For Students 9th - 10th
Acting as part of an overview on quantum theory, this section of the site answers the question, "How did Bohr's theory save the planetary model, for a while?" A section below also discusses the primary problems with Bohr's theory.
Unit Plan
Khan Academy

Khan Academy: Bohr's Model of Hydrogen

For Students 9th - 10th
Resource investigates how Bohr's model of hydrogen explains atomic emission spectra.
Handout
Nobel Media AB

The Nobel Prize: Niels Bohr Biographical

For Students 9th - 10th
The Nobel Foundation provides this site about Niels Bohr's contributions to the world of physics, specifically his "investigation of the structure of atoms and of the radiation emanating from them." This biography includes information on...
Handout
Michael Blaber, PhD

Florida State University: The Bohr Model of the Atom

For Students 9th - 10th
A well designed clear tutorial explaining the energies involved in the Bohr model of the atom. Illustrations add to the clearly presented equations.
eBook
Khan Academy

Khan Academy: Bohr's Model of Hydrogen

For Students 9th - 10th
How Bohr's model of hydrogen explains atomic emission spectra.
Handout
Other

Iun: Modern Atomic Theory

For Students 9th - 10th
This is an excellent site with information on the discovery of the atom and the different models. Includes a sample question and answer using Planck's constant.
Handout
Other

Cronodon: Atoms Models of the Atom

For Students 9th - 10th
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...
Unit Plan
CK-12 Foundation

Ck 12: Modern Atomic Theory

For Students 9th - 10th
[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....
Article
Famous Scientists

Famous Scientists: Aage Bohr

For Students 9th - 10th
Learn about the life of Aage Niels Bohr, and see how his work was pivotal in the development of the theory of the structure of the atomic nucleus.
Unit Plan
CK-12 Foundation

Ck 12: The Bohr Model of the Atom

For Students 10th - 12th
[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.
PPT
Tom Richey

Slide Share: Atomic Structure

For Students 9th - 10th
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,...
Unit Plan
CK-12 Foundation

Ck 12: Modern Atomic Theory

For Students 9th - 10th
[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....
eBook
Upper Canada District School Board

Tom Stretton's Advanced Placement Chemistry: Atomic Structure and Periodicity

For Students 9th - 10th
This chemistry e-textbook provides students with AP-level reading and practice material on atomic structure and periodicity.
Unit Plan
Boise State University

Boise State University: Atoms: A Virtual Field Trip Through Time and Space

For Students 9th - 10th
Learn about the models of the atom that have been proposed throughout history. Presents Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and the modern theory of the atom. Sections are accompanied by journal...

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