Flame emission spectra of alkali metals
Videonummer 11938437
| Flame emission spectra of the alkali metals, as recorded by Robert Bunsen (1811-1899) and Gustav Kirchhoff (1824-1887). Working together, Bunsen and Kirchhoff were the first to observe that heated elements emitted a light of characteristic wavelength. When the elements are heated the electrons within it become excited. To return to their ground state they release the extra energy as light radiation at a specific wavelength. Image taken from Lessons in Elementary Chemistry (Roscoe, 1873). | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Terry, Sheila |
| Modell-Rechte: | nicht erforderlich |
| Länge: | 10 Sekunden |
| Seitenverhältnis: | 16:9 |
| Restrictions: | - |
Preise für dieses Video ab 100 €
Werblich (Einzelne Webseiten etc.)
ab 100 €
Redaktionell (Einzelne Webseiten etc.)
ab 175 €
Medien (TV Film, Serie, TV Doku etc.)
ab 230 €