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Worksheet
Curated OER

Development of the Atomic Theory

For Students 9th - 12th
In this atomic theory worksheet, high schoolers complete a paragraph describing the development of the atomic theory by filling in the blank with 21 terms.
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Handout
Friesian School

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...