Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
calcium
Table of Contents
References & Edit History Quick Facts & Related Topics
Images, Videos & Interactives
calcium calcite Explore an interactive periodic table of the elements
The science behind dyeing Easter eggs
calcium; human nutrition
Discover how calcium and carbonate dissolved in seawater serve as the building material for seashell construction
For Students
calcium summary
Quizzes
Concept artwork on the periodic table of elements.
118 Names and Symbols of the Periodic Table Quiz
Periodic Table of the elements concept image (chemistry)
Facts You Should Know: The Periodic Table Quiz
Related Questions
Read Next
Chemical equations Chemical reactions chemistry
How Do You Balance a Chemical Equation?
curly kale. Kale or borecole (Brassica oleracea Acephala Group) a loose leafed, edible plant derived from the cabbage. vegetable
Nutritional Powerhouses: 8 Foods That Pack a Nutritional Punch
Illustration of molecules. (molecular, chemistry, science)
Why Is a Group of Molecules Called a Mole?
Buddha bowl - vegetarian meal - tofu spinach carrots chickpeas radish tomatoes cucumber cabbage
Pro and Con: Vegetarianism
Above the clouds 130 nautical miles below, astronaut Mark C. Lee floats freely without tethers as he tests the new Simplified Aid for Extravehicular Activity (EVA) Spacewalk Rescue (SAFER) system, Sept. 16, 1994. Space Shuttle Discovery, STS-64
Gravity: From Apples to the Universe
Discover
New Zealand. Political/Physical map. Includes locator.
Where Is “Old Zealand”?
Illustration for Demystified "How Dangerous is Quicksand"
How Deadly Is Quicksand?
Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)
7 of the World’s Deadliest Shipwrecks
July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.
Will Light-Speed Space Travel Ever Be Possible?
Rural Irish landscape, Sligo, Ireland.
Why Is Ireland Two Countries?
Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)
Cruel and Unusual Punishments: 15 Types of Torture
Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society
12 Novels Considered the “Greatest Book Ever Written”

calcium: Facts & Related Content

verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Share
Share to social media
URL
https://www.britannica.com/facts/calcium
Written and fact-checked by
The Information Architects of Encyclopaedia Britannica

The Information Architects maintain a master list of the topics included in the corpus of  Encyclopædia Britannica, and create and manage the relationships between them.
The Information Architects of Encyclopaedia Britannica

Facts

Also Known As Ca

Photos and Videos

calcium
calcite
calcium; human nutrition
The science behind dyeing Easter eggs
Discover how calcium and carbonate dissolved in seawater serve as the building material for seashell construction
See All Videos, Images and Interactives →

Related Topics and References

Topics
Dig Deeper: More Articles That Discuss This Topic

Key People

Sir Humphry Davy
Sir Humphry Davy
British chemist
Johann Wolfgang Döbereiner
German chemist

Related Quizzes and Features

Quiz
Concept artwork on the periodic table of elements.
118 Names and Symbols of the Periodic Table Quiz
Periodic Table of the elements concept image (chemistry)
Facts You Should Know: The Periodic Table Quiz