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Reference Terms
from Wikipedia, the free encyclopedia


Sodium is the chemical element in the periodic table that has the symbol Na and atomic number 11.

Sodium is a soft, waxy, silvery reactive metal belonging to the alkali metals that is abundant in natural compounds.

It is highly reactive, burns with a yellow flame, reacts violently with water and oxidizes in air necessitating storage in an inert environment.

Note:   The above text is excerpted from the Wikipedia article "Sodium", which has been released under the GNU Free Documentation License.
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Matter & Energy News
October 25, 2016

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updated 12:56 pm ET