2 - Matter
PHET Colorado
Build an Atom |
Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!
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PHET Colorado
Build an Atom |
Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!
|
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