Sodium

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Sodium
22.989770(2)



  Na
11
[Ne]3s1 1,3,s
[ ? ] Alkali Metal:


Sodium is a metallic chemical element, with atomic number Z = 11. It is easily oxidized to the +1 oxidation state and forms many salts. Elevated sodium levels humans may lead to high blood pressure and other complications. The pure metal reacts violently with water.