Sample of the element beryllium (Be) rotating. Beryllium has the atomic number four, and is a rare, hard, brittle alkaline earth metal. Its alloys are used in nuclear reactors as reflectors and moderators. Beryllium and its compounds are toxic and can cause serious lung diseases and dermatitis in humans. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Länge: | 12 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |