POGIL: Electron Energy & Light

Which color corresponds to the shortest wavelengths?

• Reds

• Oranges

• Yellows

• Violets

Answer explanation

Violets correspond to the shortest wavelengths of visible light, ranging from about 380 to 450 nanometers. In contrast, reds have the longest wavelengths, making violets the correct choice for the shortest wavelengths.

Tags

NGSS.HS-PS4-1

What is the photon energy range for blues?

• 382–452 (x 10^-21) J

• 352–382 (x 10^{-21}) J

• 269–318 (x 10^{-21}) J

Answer explanation

The photon energy range for blues corresponds to wavelengths around 450 nm, which translates to energies between 382–452 (x 10^-21) J. This range is consistent with the visible spectrum for blue light.

Tags

NGSS.HS-PS4-1

What is the wavelength range for yellows?

• 380–440 nm

• 440–520 nm

• 520–565 nm

• 565–590 nm

Answer explanation

The wavelength range for yellow light is between 565 and 590 nm. This range is where yellow hues are perceived, distinguishing them from other colors in the visible spectrum.

What is the wavelength range for blues?

• 380–440 nm

• 440–520 nm

• 520–565 nm

• 565–590 nm

Answer explanation

The wavelength range for blues is 440–520 nm, which corresponds to the blue part of the visible spectrum. This range is where blue light is predominantly found, making it the correct choice.

What is the wavelength of the blue-violet spectral line for hydrogen?

• 410 nm

• 434 nm

• 486 nm

• 656 nm

Answer explanation

The blue-violet spectral line for hydrogen corresponds to the Balmer series transition from n=5 to n=2, which has a wavelength of 434 nm. This makes 434 nm the correct choice among the options provided.

Which color corresponds to the wavelength of 609 nm in the boron spectrum?

• Violet

• Blue

• Blue-green

• Orange

Answer explanation

The wavelength of 609 nm falls within the visible spectrum and corresponds to the color orange. This is based on the standard wavelength-color mapping, where orange is typically associated with wavelengths around 590-620 nm.

Tags

NGSS.HS-PS4-1

What is the wavelength of the blue spectral line for boron?

• 412 nm

• 448 nm

• 494 nm

• 609 nm

Answer explanation

The blue spectral line for boron corresponds to a wavelength of 448 nm, which is within the blue region of the visible spectrum. The other options do not match the known spectral lines for boron.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Which color corresponds to the wavelength of 625 nm in the boron spectrum?

• Violet

• Blue

• Blue-green

• Red

Answer explanation

The wavelength of 625 nm falls within the red region of the spectrum. Therefore, the correct color corresponding to this wavelength in the boron spectrum is red.

What did Niels Bohr modify to explain how light interacts with electrons in an atom?

• Rutherford’s Nuclear Atom model

• Dalton’s Atomic Theory

• Thomson’s Plum Pudding model

• Einstein’s Theory of Relativity

Answer explanation

Niels Bohr modified Rutherford’s Nuclear Atom model by introducing quantized energy levels for electrons, explaining how light interacts with them through the emission and absorption of specific wavelengths.

Tags

NGSS.HS-PS4-3

What is necessary to pull the electron away from the protons in the nuclei?

• Energy

• Light

• Sound

• Heat

Answer explanation

To pull an electron away from protons in the nucleus, energy is required to overcome the attractive force between them. This energy can come in various forms, but fundamentally, it is energy that is necessary.

Tags

NGSS.HS-PS1-4