Sample of the transition metal chromium (Cr) rotating. Chromium has the atomic number 24 and is a hard, metallic element that can be highly polished. It never occurs by itself in nature but only in compounds. When combined with oxygen it yields chromic oxide which is used as a pigment. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Länge: | 12 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |