Question

model 2 - emission spectra for hydrogen and boron atoms

1. use colored pencils to color the hydrogen and boron spectral lines within their respective spectra in model 2.
2. list the spectral lines for hydrogen gas by color and corresponding wavelength.
3. the spectral lines for boron were produced using the same method as hydrogen. list three of the colors and corresponding wavelengths for borons spectral lines as its light passes through a prism.
4. consider the hydrogen spectrum in model 2.

a. which color of light corresponds to the shortest wavelength?
b. which color of light corresponds to the longest wavelength?

Explanation:

Step1: Recall visible - light spectrum

The visible - light spectrum ranges from shorter - wavelength violet to longer - wavelength red.

Step2: Identify hydrogen spectral lines

Hydrogen has characteristic spectral lines in the visible range corresponding to specific electron transitions.

Step3: Identify boron spectral lines

Boron also has spectral lines based on its atomic structure and electron transitions, with similar color - wavelength relationships as in the general visible spectrum.

Step4: Answer question 10a

Violet has the shortest wavelength among visible colors.

Step5: Answer question 10b

Red has the longest wavelength among visible colors.

Answer:

1. (This requires physical coloring and cannot be done in text - based response. But the general idea is to color according to the visible - light color - wavelength associations. For example, violet has a short wavelength and red has a long wavelength.)
2. Typically, in the hydrogen spectrum:

• Violet: Shorter wavelengths around 410 - 434 nm
• Blue - green: Around 486 nm
• Red: Around 656 nm

1. For boron, some common spectral lines could be:

• Violet: Shorter wavelength (e.g., around 400 - 420 nm range depending on specific transitions)
• Blue: Wavelength around 450 - 470 nm
• Green: Wavelength around 500 - 520 nm (values are approximate as they depend on the specific atomic transitions)

10.
a. Violet corresponds to the shortest wavelength in the visible spectrum.
b. Red corresponds to the longest wavelength in the visible spectrum.