Humphry Davy Research Paper
In 1808, Sir Humphry Davy was the first to isolate metallic calcium through the electrolysis of a mixture containing lime and mercuric oxide. Its name ‘calcium’ is derived from the Latin word for lime, ‘calx’. It has since been sorted into the Alkaline Earth Metal family. Calcium’s symbol in the periodic table is Ca. This element has an atomic number of 20 and an atomic mass of 40.078. Calcium contains 20 protons, 20 neutrons, and 20 electrons. IT has a melting point of 842 degrees Celsius (1548 degrees F) and a boiling point of 1484 degrees Celsius (2703 degrees F). Calcium is classified as a metal and costs $11 per 100 grams. When in its normal phase, Calcium can be found as a solid. Interestingly, calcium is never found free in nature
because of its easily made compounds when it reacts to oxygen and water, however, it makes up 4.2% of earth’s crust making it the fifth most abundant element there. Because of calcium’s reactivity to other common elements, there is little demand for metallic calcium. Calcium carbonate is one of the most common compounds of calcium. It is used for things like white paint, toothpaste, cleaning powder, etc. Another common calcium compound is calcium phosphate which is the main material in bones and teeth.
because of its easily made compounds when it reacts to oxygen and water, however, it makes up 4.2% of earth’s crust making it the fifth most abundant element there. Because of calcium’s reactivity to other common elements, there is little demand for metallic calcium. Calcium carbonate is one of the most common compounds of calcium. It is used for things like white paint, toothpaste, cleaning powder, etc. Another common calcium compound is calcium phosphate which is the main material in bones and teeth.