The element sodium gets its name from the Medieval Latin word sodanum and the English word soda, which translates to "headache remedy." The chemical symbol of sodium is derived from the Latin word for sodium carbonate, which is "natrium." An English chemist named Sir Humphry Davy was the first person to isolate pure sodium, which was accomplished through the electrolysis of caustic soda.
Sodium is an extremely reactive element, is the sixth most plentiful element on Earth and is not found freely in nature. Sodium has many uses and is used in the manufacturing of sodium peroxide, sodamide, sodium cyanide, titanium and sodium hydride. The element sodium is a solid metal at room temperature, is assigned the atomic number 11 and belongs to the Alkali group on the periodic table of elements.