Calcium was discovered in 1808 by Sir Humphrey Davy in England. The name is derived from the Latin word, calx or calcis, which means lime. Calcium is an alkaline earth metal and is not found free in nature. This element is the 5th most abundant found in the Earth's crust.
The symbol for Calcium is Ca. The atomic number is 20, with an atomic mass of 40. There are 20 protons and 20 electrons found in the element of Calcium.
Calcium is essential and is the main component for healthy bone and teeth growth in humans and animals. The element burns a dark red color when used in conducting a flame test.