Calcium Metal
Numéro d’image : 12635902
| Calcium metal. Calcium is essential for living organisms, particularly in cell physiology where movement of the calcium ion into and out of the cytoplasm functions as a signal for many cellular processes. As a major material used in mineralization of bone, teeth and shells, calcium is the most abundant metal by mass in many animals. Calcium is reactive and relatively soft for a metal. Although harder than lead, it can be cut with a knife with difficulty. It is a silvery metallic element that can be extracted by electrolysis from a fused salt like calcium chloride. When exposed to the air, it rapidly forms a grey-white coating of calcium oxide and calcium nitride. | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Winters, Charles D. |
| Taille de l’image : | 3396 px × 3334 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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