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atomic radius |
Also found in: Wikipedia, Hutchinson | 0.06 sec. |
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atomic radius [ə′täm·ik ′rād·ē·əs] (physical chemistry) Also known as covalent radius. Half the distance between the nuclei of two like atoms that are covalently bonded. The experimentally determined radius of an atom in a covalently bonded compound. Also known as covalent radius. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Atoms come in a variety of sizes, but scientists often refer to a nominal atomic size as the diameter of the smallest, most abundant atom--hydrogen. According to senior technical advisor, Dick James, "Chipworks has analyzed large feature sizes such as those found in passive optical devices and MEMS down to the atomic size features found in laser diodes". Remarkably, the same effect that suppresses intermingling within a crystal - atomic size mismatch - favors intermixing at its surface. |
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