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 …
钙（金属元素）_百度百科
钙（calcium）是一种金属元素，元素符号为Ca，相对原子质量为40.078。 钙单质是银白色软金属，暴露在空气中会变成灰白色，密度为1.54g/cm3，熔点839℃，沸点1484℃。
钙 - 维基百科，自由的百科全书
钙（英語： Calcium ），是一種化學元素，化學符號为Ca，原子序數为20，原子量為 40.078 u 。 鈣是一種銀白色 碱土金属 ， 化學活性 頗高，暴露于空气下就会形成深色的氧化物和氮化物。
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 - Element information, properties and uses | Periodic Table
Element Calcium (Ca), Group 2, Atomic Number 20, s-block, Mass 40.078. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Calcium | Ca (Element) - PubChem
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 | Ca | CID 5460341 - PubChem
Calcium | Ca | CID 5460341 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Calcium Element | History, Uses, Facts, Physical Chemical …
Calcium is an alkaline earth metal and has been known since prehistoric times. It was discovered in 1787 by Antoine Lavoisier and was isolated in pure form in 1808. Calcium is important nutrient for the human body.
Calcium Facts, Symbol, Discovery, Properties, Uses - Chemistry …
Calcium (pronunciation KAL-see-em [2]), represented by the chemical symbol or formula Ca [1], is a soft element belonging to the family of alkali earth metals [3]. Naturally occurring Ca is a mixture of 6 isotopes with mass numbers 40, 42, 43, 44, 46 and 48 [1, 3] .
Calcium - Element Data, Properties, Uses, and Interesting Facts
Calcium with atomic number 20 is represented in the periodic table with the symbol Ca. Calcium (Ca) is a vital element that aids our bones stay tough and capable of supporting our load. Calcium is also used by our nervous system to help transmit impulses through our bodies. The element maintains the vital for bones and teeth.