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An element that has eleven protons in its nucleus is Sodium. Sodium has an atomic number of 11, an atomic weight of 22.98977, is the third element from the top in the left most column of the Periodic Table of elements, and its chemical symbol is Na which is derived from the word Natrium. Sodium was named in 1807 by Sir H. Davy. Sodium is a soft, silver-white, alkaline metallic chemical element having a wax like consistency. Sodium is the sixth most abundant element in the Earth's crust, but is found in nature only in combined form, such as sodium chloride (NaCl) as it is extremely reactive. Sodium has a specific gravity of 0.971, a melting point of 97.5 degrees Celsius and a boiling point of 883 degrees Celsius.

To view an interactive version of the Periodic Table of Elements, please click on the hypertext under Related Links.

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13y ago

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