| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,507,455,635 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
Na |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.02 sec. |
|
Na, symbol for the element sodium sodium, a metallic chemical element; symbol Na [Lat. natrium]; at. no. 11; at. wt. 22.98977; m.p. 97.81°C;; b.p. 892.9°C;; sp. gr. 0.971 at 20°C;; valence +1. Sodium is a soft, silver-white metal. ..... Click the link for more information. . NASee numerical aperture.
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. |
|
| Encyclopedia browser | ? | ? Full browser | |||
|---|---|---|---|---|---|
Atomic Energy Commission atomic force microscope atomic layer deposition Atomic mass atomic mass unit Atomic nucleus atomic number atomic number 11 atomic operation Atomic physics Atomic structure and spectra atomic theory atomic weight atomism Atomization |
| ||||
| Encyclopedia |
| Free Tools: |
For surfers:
Browser extension |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|