Definition Of Element Calcium

Calcium definition a silver white divalent metal occurring combined in limestone chalk gypsum etc occurring also in vertebrates and other animals as a.

Definition of element calcium. Calcium is a soft white element which is found in bones and teeth and also in limestone. Definition noun widespread highly reactive metal and chemical element ca contained in chalk bones and bivalve shells. 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. As an alkaline earth metal calcium is a reactive metal that forms a dark oxide nitride layer when exposed to air its physical and chemical properties are most similar to its heavier homologues strontium and barium it is the fifth most abundant element in earth s crust and the third most abundant metal after iron and.

Some leafy green vegetables such as. Calcium definition is a metallic chemical element of the alkaline earth group that occurs naturally only in combination and is essential to cellular functions in all known organisms. The fifth most abundant element in the earth s crust. Calcium is a chemical element with the symbol ca and atomic number 20.

Calcium is essential for healthy bones and is also important for muscle contraction heart action and normal blood clotting. Noun chemistry a white metallic element that burns with a brilliant light. 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. How to use calcium in a sentence.

A mineral found mainly in the hard part of bones where it is stored. In combination with phosphorus it forms calcium phosphate the dense hard material of the bones and teeth. Calcium ca kal se um a chemical element atomic number 20 atomic weight 40 08. See appendix 6 calcium is the most abundant mineral in the body.

Meaning pronunciation translations and examples. Calcium synonyms calcium pronunciation calcium translation english dictionary definition of calcium. When people get older they should eat food which is rich in calcium. Symbol ca a silvery moderately hard alkaline earth metal that constitutes approximately 3 6 percent of the earth s crust and is a basic component of.

An important component of most plants and animals.