Calcium is found in nature in many forms like gypsum, fluorite and limestone. Discovery and History. He was trying to make a substance that we now call calcium amalgamate by mixing lime (also called calcium oxide - CaO) with mercuric oxide (HgO) and putting an electric current across it - a process called 'electrolysis'. 1 decade ago. He also discovered magnesium, barium and boron based on this electrolysis. More. Maria - The element Calcium was discovered in 1808 in England by a scientist named Sir Humphrey Davy. Who Discovered Calcium? Calcium constitutes 3.64 percent of Earth’s crust and 8 percent of the Moon’s crust, and its cosmic abundance is estimated at 4.9 × 10 4 atoms (on a scale where the abundance of silicon is 10 6 atoms). Home / Learn / Historical Biographies. Calcium is element atomic number 20 on the periodic table, which means each atom of calcium has 20 protons.It has the periodic table symbol Ca and an atomic weight of 40.078. It was later proved to be very important to animals and humans. Who Discovered the Constellation Pisces? 0 0. Swedish chemist Berzelius and Swedish court physician … Calcium is a chemical element that was first discovered by Sir Humphry Davy, a British Chemist, in 1808, in England.He made the discovery of Calcium by electrolyzing a mixture of lime and mercuric oxide. Interest in the intracellular role of calcium arose 60 years later out of Kamada (Japan) and Heibrunn (USA) experiments in the early 1940s. He discovered several new elements, including magnesium, calcium, strontium, and barium. The British inventor and a chemist, Sir Humphrey Davy discovered Calcium in 1808 when he electrolyzed a mix of lime and mercuric oxide. Calcium Discovery . Discovery Date: 1808 Discoverer: Sir Humphrey Davy [England] Name: Calcium derives its name from the Latin 'calcis' which was the word for lime (calcium oxide, CaO) and limestone (calcium carbonate, CaCO 3) History: The Romans prepared lime in the first century, but the metal was not discovered until 1808. Calcium is a chemical element with the symbol Ca and atomic number 20. A quick search on Wikipedia confirms this, however states that elemental Calcium, while not discovered, was isolated by Sir Humpry Davy. Source(s): My own memory, as well as Wikipedia. It is the 5th most abundantly found substance in the earth’s crust and constitutes almost 3.5 percent of it. Calcium is an atom that was added to the Periodic Table of Elements in 1808, discovered by Sir Humphrey Davy (England) Calcium is the fifth most common element on the Earth's crust. Calcium isn't found free in nature, but it can be purified into a soft silvery-white alkaline earth metal. As calcite (calcium carbonate), it occurs on Earth in limestone, chalk, marble, dolomite, eggshells, pearls, coral, stalactites, stalagmites, and the shells of many marine animals. The importance of calcium in muscle contraction was discovered by Sidney Ringer who reported this fact in 1883. Anonymous. Calcium is an alkaline earth metal and has been known since prehistoric times. This is an essential mineral in the human body for growth and development of bones and teeth. Metallic calcium was first isolated by Sir Humphry Davy in 1808 through the electrolysis of a mixture of lime (CaO) and mercuric oxide (HgO). Calcium is important nutrient for the human body. Who Discovered Calcium ? It was discovered in 1787 by Antoine Lavoisier and was isolated in pure form in 1808. Although calcium is the fifth most abundant element in the earth's crust, it is never found free in nature since it easily forms compounds by reacting with oxygen and water. 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