Question

Why calcium is found in the form of compound.

Answer 1

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. Metallic calcium was first isolated by Sir Humphry Davy in 1808 through the electrolysis of a mixture of lime (CaO) and mercuric oxide (HgO)

Answer 2

Calcium is found in the form of compound because -

• The calcium is one of the most easily available chemical elements in our planet but most of the naturally available mineral is in the form of chemical compounds. Natural availability of calcium in element state,is very rare.

• This happens because,the calcium is highly reactive with water and oxygen. Now we know,that both water and oxygen are also easily available in our environment.

• That's why the chances of chemical reaction of calcium with other easily available substances is pretty high. And for this same reason the actual availability of the calcium in our environment is more in the form of a chemical compound.