sódium
Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium belongs to the alkali metal group and is located in Group 1 of the periodic table. It is the sixth most abundant element in the Earth's crust by mass.
Pure sodium is not found in nature because it is so reactive. Instead, it is found in
In its elemental form, sodium is too reactive to be used commercially. It reacts vigorously with water,
Sodium is essential for life. It plays a critical role in maintaining fluid balance, nerve impulse transmission,
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