Handout
Other

Fact index.com: Balmer Series

For Students 9th - 10th
Fact-Index.com offers a brief dictionary definition of the Balmer series, including hyperlinked terms.
Handout
Other

Fact index.com: Paschen Series

For Students 9th - 10th
Fact-Index.com offers a dictionary definition of the Paschen series, including hyperlinked terms.
Graphic
Curated OER

Proceedings of the Friesian School/the Quantacized Atom

For Students 9th - 10th
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Graphic
Curated OER

Proceedings of the Friesian School/the Quantacized Atom

For Students 9th - 10th
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Graphic
Curated OER

Proceedings of the Friesian School/the Quantacized Atom

For Students 9th - 10th
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Graphic
Curated OER

Proceedings of the Friesian School/the Quantacized Atom

For Students 9th - 10th
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Graphic
Curated OER

Proceedings of the Friesian School/the Quantacized Atom

For Students 9th - 10th
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Graphic
Curated OER

Proceedings of the Friesian School/the Quantacized Atom

For Students 9th - 10th
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Graphic
Curated OER

Proceedings of the Friesian School/the Quantacized Atom

For Students 9th - 10th
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Graphic
Curated OER

Proceedings of the Friesian School/the Quantacized Atom

For Students 9th - 10th
A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...
Graphic
Curated OER

Science Kids: Science Images: Hydrogen Atom

For Students 9th - 10th
This is a simple picture of a hydrogen atom using the Bohr model. A negatively charged electron can be seen on the outside of the positively charged proton.
Primary
Nobel Media AB

The Nobel Prize: Nobel Prize in Physics 1922 Presentation Speech

For Students 9th - 10th
This Nobel Foundation site provides the "Presentation Speech by Professor S.A. Arrhenius, Chairman of the Nobel Committee for Physics of the Royal Swedish Academy of Sciences, on December 10, 1922."
Unit Plan
CK-12 Foundation

Ck 12: Structure of the Atom

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Students learn about the important discoveries of subatomic particles, and how they led to our current understanding of the atom.
Graphic
Curated OER

Carondelet High School: Mercury

For Students 9th - 10th
An illustration of a mercury atom.
Handout
PBS

Pbs: Planck Discovers the Quantum Nature of Energy

For Students 9th - 10th
PBS offers a short summary of the discovery of the quantum nature of the atom by Max Planck. Easy to follow.
Handout
National High Magnetic Field Laboratory

Magnet Academy: Timeline of Electricity and Magnetism: 1910 1929

For Students 9th - 10th
Scientists' understanding of the structure of the atom and of its component particles grows, the phone and radio become common, and the modern television is born.
Article
Khan Academy

Khan Academy: Electromagnetic Waves: The Electromagnetic Spectrum and Photons

For Students 9th - 10th
An article that discusses the coupling of an electric field with a magnetic field to create electromagnetic waves. Article also discusses how different types of electromagnetic waves have different wavelengths which forms the...
Unit Plan
Khan Academy

Khan Academy: Spectroscopy: Interaction of Light and Matter

For Students 9th - 10th
Tutorial provides a discussion of UV-Vis spectroscopy, infrared (IR) spectroscopy, and the Beer-Lambert law.
Handout
Khan Academy

Khan Academy: Photoelectric Effect

For Students 9th - 10th
Article explains the experiments on the photoelectric effect and how these experiments led to the idea of light behaving as a particle of energy called a photon.

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