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A Science Odyssey: You Try It: Atom Builder Go directly to Atom Builder activity (84K - requires Shockwave) How small can we go? The stuff you scrape off burnt toast is made primarily of atoms of carbon. But what makes up a carbon atom -- or any other atom? The first subatomic particle to be identified was the electro

Encyclopædia Britannica Subscribe Log In · Join In the News Spotlight Demystified Quizzes Galleries Lists Search Click here to search Atommatter Written By: George F. Bertsch, Sharon Bertsch McGrayne, James Trefil, Last Updated: 4-14-2016 See Article History Related Topics Ernest Rutherford magnetic reson

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News Tech Health Planet Earth Space Strange News Animals History Human Nature News Tech Health Planet Earth Space Strange News Animals History Human Nature News Tech Health Planet Earth Space Strange News Animals History Human Nature Live SciencePlanet Earth Reference: What is an Atom? By Tim Sharp, Reference Editor |

Science EducationPrivacy and Security Notice Questions and Answers Previous Question (What is the sun made from?) Questions and Answers Main Index Next Question (How do I make amodel of an atom?) What is an atom? What are atoms made of?Atoms are the basic building blocks of ordinary matter. Atoms can join together to

An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element . Every solid , liquid , gas , and plasma is composed of neutral or ionized atoms. Atoms are very small typical sizes are around (a ten-billionth of a meter, in the short scale). However, atoms do not have well-def