Strontium has 50 neutrons. It has 38 protons, and the symbol for it is Sr. Classified as an alkaline earth metal, strontium also has a boiling point of 1,382 degrees Celsius and a melting point of 777 degrees Celsius.
Strontium does not exist freely in nature. It was discovered in a sample of witherite by Adair Crawford in 1790. As he was in Scotland at the time of his discovery, he named his find strontianite after the Scottish town Strontian. However, in the early 1800s, the chemist Humphrey Davy isolated strontium through the electrolysis process. Strontium also is found in the ore celestite. This element is soft and silvery in appearance, it turns a yellowish color through the oxidation process. Although strontium has 28 isotopes, only four of these are stable.
Strontium has many uses, some of which include the making of flares, fireworks and color television glass. The isotope Strontium-90 is also utilized in the medical field for cancer treatments