Calcium
Esquema
Jerarquía
<materials by composition> > inorganic material > metal > <metal by composition or origin> > nonferrous metal
Descripción
A silvery white metal, with symbol Ca and atomic number 20, the fifth most abundant element in the earth's crust, occurring in many compounds. Its uses include as a nutritional supplement to assist the growth of bone and teeth, as a dehydrating agent for organic solvents, and to remove gases from molten metals prior to casting.
URI original del concepto
Otros términos
- 鈣 [zh]
- calcio [es]
- gài [zh]
- gai [zh]
- kai [zh]
- Ca (metal) [en]