Electron shells of metal atoms in the gas phase can be elevated to an excited state by light. If light is passed through the metal vapour, various lines will be absent from its spectrum afterwards. These lines correspond to the energy levels of those electrons in the metal vapour which have been excited by the light. Spectra such as this are called absorption spectra. This experiment investigates absorption spectra of the following metals: strontium, barium, calcium, sodium, lithium, potassium, platinum, cobalt and magnesium.
| Materiallist (Excerpt) |
Product |
Amount |
|
Slit, adjustable
|
08049-00
|
1
|
|
Housing for experiment lamp
|
08129-01
|
1
|
|
Multitap transformer, 14 VAC/ 12 VDC, 5 A
|
13533-93
|
1
|
|
Optical profile-bench, l 1000mm
|
08282-00
|
1
|
|
Object holder, 5x5 cm
|
08041-00
|
1
|
|
Diffraction grating, 600 lines/mm
|
08546-00
|
1
|
|
Single condenser, f 100 mm
|
08137-01
|
1
|
|
Metal salts, set of 6 chlorides
|
08448-01
|
1
|
|
Screen, metal, 300 x 300 mm
|
08062-00
|
1
|
|
Holder G 6.35 f.50/100W halo.lamp
|
08129-04
|
1
|
|
Butane burner, Labogaz 206 type
|
32178-00
|
1
|
|
Lens holder
|
08012-00
|
1
|
|
Slide mount for optical bench, h = 30 mm
|
08286-01
|
5
|
|
Base for optical bench, adjustable
|
08284-00
|
2
|
|
Lens, mounted, f +150 mm
|
08022-01
|
1
|
|
Magnesia rods, 25 pcs
|
38718-04
|
1
|
|
Halogen lamp, 12 V/50 W
|
08129-06
|
1
|
|
Base for butane burner
|
32178-02
|
1
|
|
Butane cartridge C206, without valve
|
47535-00
|
1
|
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