Block of sodium metal,a chemical element
Bildnummer 11518429
| Sodium. Block of the metal sodium,one of the chemical elements,in an opened petri dish. Sodium is a soft,highly-reactive alkali metal. At room temperature it oxidises in air and reacts violently with water,so it has to be covered with a film of oil. Sodium is never found in its natural state but as part of a compound. Sodium is the seventh-commonest element found in the Earth's crust,and also occurs widely in sea salt. Sodium compounds are used in a variety of industrial processes and are essential for living organisms. Sodium has the chemical symbol Na,an atomic number of 11 and an atomic weight of 23 | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Chillmaid, Martyn F. |
| Bildgröße: | 5329 px × 3307 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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