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technical implementer: Tomer Shiran
published by the WGBH Educational Foundation
This website allows the user to build their own Carbon Atom out of elementary particles (up quarks, down quarks, and electrons). As protons, neutrons, and electrons are added to the atom, the atom changes from one element to another. From hydrogen the atom changes into helium, then lithium, and on up through the Periodic table until it finally becomes carbon. If, while being built, the balance between protons, neutrons, and electrons is not sufficiently maintained, the atom will either become radioactive and decay, or become so ionized that it will attach itself to a molecule outside the building area. In either case, the user must start over. The activity is over when the atom changes into carbon. Read the guides for assistance.
Subjects Levels Resource Types
Modern Physics
- Atomic Physics
= Atomic Models
- Elementary Particles
- Lower Undergraduate
- Middle School
- High School
- Instructional Material
= Activity
= Interactive Simulation
Intended Users Formats Ratings
- Educators
- Learners
- application/shockwave
- text/html
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Access Rights:
Free access
© 1998 WGBH
Additional information is available.
atom, builder, carbon, down, electron, ion, isotope, neutron, proton, quark, up
Record Creator:
Metadata instance created July 16, 2007 by Christopher Bares
Record Updated:
December 22, 2010 by Taha Mzoughi
Last Update
when Cataloged:
September 15, 2007
Other Collections:

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Record Link
AIP Format
(WGBH Educational Foundation, Boston, 1998), WWW Document, (
Atom Builder (WGBH Educational Foundation, Boston, 1998), <>.
APA Format
Atom Builder. (2007, September 15). Retrieved July 24, 2024, from WGBH Educational Foundation:
Chicago Format
WGBH Educational Foundation. Atom Builder. Boston: WGBH Educational Foundation, September 15, 2007. (accessed 24 July 2024).
MLA Format
Atom Builder. Boston: WGBH Educational Foundation, 1998. 15 Sep. 2007. 24 July 2024 <>.
BibTeX Export Format
@misc{ Title = {Atom Builder}, Publisher = {WGBH Educational Foundation}, Volume = {2024}, Number = {24 July 2024}, Month = {September 15, 2007}, Year = {1998} }
Refer Export Format

%T Atom Builder %D September 15, 2007 %I WGBH Educational Foundation %C Boston %U %O application/shockwave

EndNote Export Format

%0 Electronic Source %D September 15, 2007 %T Atom Builder %I WGBH Educational Foundation %V 2024 %N 24 July 2024 %8 September 15, 2007 %9 application/shockwave %U

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The AIP Style presented is based on information from the AIP Style Manual.

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