What Does Sodium (Na) Mean?
Sodium is a chemical element with the atomic number of 11. It is an alkali metal and found in group I of the periodic table. This element is soft with a shiny silver appearance. Sodium exists in numerous minerals such as rock salt (NaCl), sodalite and feldspars. It is the sixth most abundant element in the Earth’s crust.
Sodium is a highly reactive element because of its ability to readily donate an electron from its outer shell and create a positively charged atom (Na+ cation). It can cause corrosion in various metallic objects.