periodic law
4 dictionary results for: Periodic law
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
pe·ri·od·ic law 
[peer-ee-od-ik, peer-] Pronunciation Key
[peer-ee-od-ik, peer-] Pronunciation Key –noun Chemistry.
| 1. | the law that the properties of the elements are periodic functions of their atomic numbers. |
| 2. | Also called Mendeleev's law. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights. |
[Origin: 1870–75]
]
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
American Heritage Dictionary - Cite This Source - Share This
| pe·ri·od·ic law (pĭr'ē-ŏd'ĭk)
n. Chemistry The principle that the properties of the elements recur periodically as their atomic numbers increase. |
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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
WordNet - Cite This Source - Share This
| periodic law | |
noun | |
| (chemistry) the principle that chemical properties of the elements are periodic functions of their atomic numbers |
WordNet® 3.0, © 2006 by Princeton University.
American Heritage Stedman's Medical Dictionary - Cite This Source - Share This
periodic law n.
The principle that properties of elements recur periodically as atomic numbers increase.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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