Sodium is the second element of the alkali metals group with chemical symbol Na and atomic number 11.Sodium metal is a soft silvery white solid at normal pressure and temperature, it is so soft that you can cut easily with a knife, but it is also high reactive with the air and with water. In the air Sodium metal turns white cause the formation of own oxide, in the water it burns vigorously with a orange flame and produces sodium hydrate (also called sodium idroxide). Like Lithium metal, also Sodium metal is put under High Quality mineral oil to prevent oxidization.
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