2a. Look at the spectrum of the unknown element. Write below the color and corre

Question

2a. Look at the spectrum of the unknown element. Write below the color and corresponding wavelength of the brightest lines. You can determine the wavelength of the lines by first measuring the length of the scale bar in cm, calculating the scale factor, then measuring the position of the line of your interest from the left edge in cm. The left edge is at 4000 Angstrom. Multiply your position in cm by the scale factor to get your wavelength. For a detailed description with example go to the pre-lab intro for this lab. Depending on the unknown element, you may see more or less lines than accounted for in the template in the answer. scale factor: ________________ Angstrom/cm color: _________________ wavelength: ____________________; color: _________________ wavelength: ____________________; color: _________________ wavelength: ____________________; color: _________________ wavelength: ____________________; color: _________________ wavelength: ____________________; color: _________________ wavelength: _____________.

Explanation / Answer

blue color , wavelength = 4000 * 1.5 = 6000 Angstrom

green color , wavelength = 4000 * 2 = 8000 Angstrom

yellow color , wavelength = 4000 * 2.5 = 10000 Angstrom

red color , wavelength = 4000 * 3 = 12000 Angstrom

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