Sittig, Marshall Office of Research, Project Administration, Princeton University, Princeton, New Jersey.
de Freitas, Duarte Mota Department of Chemistry, Loyola University, Chicago, Illinois.
Last reviewed:July 2018
Show previous versions
- Links to Primary Literature
- Additional Readings
A chemical element, Na, atomic number 11, and atomic weight 22.990. Sodium, found in Group 1 (also known as the alkali metals) of the periodic table between lithium and potassium, is a soft, silvery-white, reactive, and low-melting metal. Sodium is essential for both plant and animal life. In animals, sodium ions (Na+) control fluid balance and are important for nerve impulse transmission and muscle contraction. Sodium chloride (NaCl), or common salt, is found in nature and is the most important sodium compound in commerce. See also: Alkali metals; Periodic table
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information