Calcium - Element information, properties and uses | Periodic Table
Calcium was named after the Latin term calx meaning lime, and is a reactive silvery metallic element found in Group 2 of the periodic table. It was first isolated in 1808 in England when Sir Humphry Davy electrolyzed a mixture of lime and mercuric oxide.
Calcium - Wikipedia
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 …
Periodic Table - Ptable
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Calcium | Ca (Element) - PubChem
Periodic Table element Summary Calcium. Calcium is a chemical element with symbol Ca and atomic number 20. Classified as an alkaline earth metal, Calcium is a solid at room temperature.
Calcium | Definition, Properties, & Compounds | Britannica
2024年11月12日 · calcium (Ca), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table. It is the most abundant metallic element in the human body and the fifth most abundant element in Earth ’s crust.
Calcium (Ca) - Periodic Table
Calcium is the 20th element in the periodic table and has a symbol of Ca and atomic number of 20. It has an atomic weight of 40.078 and a mass number of 40. Calcium has twenty protons and twenty neutrons in its nucleus, and twenty electrons in four shells.
Calcium Facts – Atomic Number 20 and Element Symbol Ca
2015年6月5日 · Calcium is the 20 th element of the periodic table. These calcium facts contain chemical and physical data along with general information and history.
Calcium - Periodic Table
Calcium is an alkaline earth metal and has been known since prehistoric times. Click for even more facts and information on this periodic table element.
Calcium - EniG. Periodic Table of the Elements
Physical and chemical properties of Calcium: general data, thermal properties, ionization energies, isotopes, reduction potentials, abundance of elements, crystallographic data.
Calcium (Ca) - Periodic Table
Calcium is a chemical element of the periodic table with chemical symbol Ca and atomic number 20 with an atomic weight of 40.0784 u and is classed as alkaline earth metal and is part of group 3 (scandium group).
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