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   What is the atomic number of calcium?

   • Calcium is a chemical element. Its symbol on the periodic table (a list of all the elements) is Ca. Its atomic number is 20. (The atomic number says where Calcium sits in the periodic table.) It has 20 protons and 20 electrons (if is an atom, see ion). The most common isotopes are Ca-40 and Ca-44. Its mass number is about 40.08.

   Calcium - Simple English Wikipedia, the free encyclopedia

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   Is calcium a chemical element?

   • face-centred cubic (fcc) (cF4) Calcium is a chemical element; it has symbol Ca and atomic number 20. 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.

   Calcium - Wikipedia

   en.wikipedia.org/wiki/Calcium

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   What is calcium & why is it important?

   • Calcium is a mineral most often associated with healthy bones and teeth, although it also plays an important role in blood clotting, helping muscles to contract, and regulating normal heart rhythms and nerve functions. About 99% of the body’s calcium is stored in bones, and the remaining 1% is found in blood, muscle, and other tissues.

   Calcium – The Nutrition Source

   nutritionsource.hsph.harvard.edu/calcium/

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   What is calcium metabolism?

   • Calcium metabolism is the movement and regulation of calcium ions (Ca 2+) in (via the gut) and out (via the gut and kidneys) of the body, and between body compartments: the blood plasma, the extracellular and intracellular fluids, and bone.

   Calcium metabolism - Wikipedia

   en.wikipedia.org/wiki/Calcium_metabolism

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2. en.wikipedia.org › wiki › CalciumCalcium - Wikipedia

   en.wikipedia.org › wiki › Calcium

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   Calcium is a chemical element; it has symbol Ca and atomic number 20. 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.

   • Calcium metabolism

     An important aspect of calcium metabolism is plasma calcium...

   • Calcium in biology

     Plasma calcium levels in mammals are tightly regulated, [2]...

3. simple.wikipedia.org › wiki › CalciumCalcium - Simple English Wikipedia, the free encyclopedia

   simple.wikipedia.org › wiki › Calcium

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   Learn about calcium, a soft white-gray metal and an alkaline earth metal. Find out its properties, isotopes, compounds, uses, and history of discovery.

4. en.wikipedia.org › wiki › Calcium_metabolismCalcium metabolism - Wikipedia

   en.wikipedia.org › wiki › Calcium_metabolism

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   Learn about the movement and regulation of calcium ions in the body, and their functions in bone, muscle, nerve, and hormone release. Find out the normal plasma levels, sources, and disorders of calcium metabolism.

5. en.wikipedia.org › wiki › Calcium_in_biologyCalcium in biology - Wikipedia

   en.wikipedia.org › wiki › Calcium_in_biology

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   Learn about the role of calcium ions in cell signaling, muscle contraction, bone formation, and other biological processes. Find out the recommended intake, dietary sources, health claims, and potential side effects of calcium.

6. Videos

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     Calcium Benefits: Way Beyond The Bones – Dr. Berg

     3 Aug 2015

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     17:46

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     Calcium and Phosphate Metabolism

     16 Jul 2013

     527.8K views

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     The Benefits of Calcium

     20 Aug 2015

     18.3K views

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7. www.britannica.com › science › calciumCalcium | Definition, Properties, & Compounds | Britannica

   www.britannica.com › science › calcium

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   Sep 9, 2024 · Calcium is a soft, silvery metal and the most abundant metallic element in the human body. It is essential for life, occurs in many minerals and alloys, and has various industrial and medical uses.

8. www.rsc.org › periodic-table › elementCalcium - Element information, properties and uses | Periodic ...

   www.rsc.org › periodic-table › element

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   Element Calcium (Ca), Group 2, Atomic Number 20, s-block, Mass 40.078. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Jump to main content

9. nutritionsource.hsph.harvard.edu › calciumCalcium - The Nutrition Source

   nutritionsource.hsph.harvard.edu › calcium

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   Learn about calcium's functions, sources, recommended amounts, and health effects from this web page by Harvard T.H. Chan School of Public Health. Find out how calcium is regulated in the body, how to improve its bioavailability, and what are the signs of deficiency and toxicity.