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Elements

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Definition: Substances that comprise all matter. Each element is made up of atoms that are identical in number of electrons and protons and in nuclear charge, but may differ in mass or number of neutrons.  GEN only; prefer specifics; ISOTOPES (little used) & RADIOISOTOPES & many specifics are also available; m for metastable   
See Also Isotopes; Radioisotopes
Examples Actinoid Series Elements; Arsenic; Boron; Carbon; Chalcogens; Elements, Radioactive; Halogens; Hydrogen; Lanthanoid Series Elements; Metalloids; Metals, Alkali; Metals, Alkaline Earth; Metals, Heavy; Metals, Light; Metals, Rare Earth; Nitrogen; Noble Gases; Phosphorus; Transition Elements
 
SubstanceCAS Registry & nameCategoriesSourceDrugs*
Rutherfordium  0   *Elements. Nat Chem. 2010 Jan;2(1):66

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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