Quantization of Energy and the Periodic table

How is a photon different from matter?

• A photon has no mass and travels at the speed of light.

• A photon has mass and travels at the speed of light.

• A proton has no mass and travels at the speed of light.

• A proton has mass and travels at the speed of light.

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The photoelectric effect is when:

• Electrons collide inside a metal to release photons.
• One incident metal electron releases one photon.
• One incident photon releases one electron from a metal.
• Photons are absorbed in to metal ions releasing electrons.

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What is the energy of a photon of wavelength 400 nm?

• 2.95 eV

• 3.00 eV

• 3.09 eV

• 3.12 eV

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There is an emission spectrum and absoption spectrum shown here. What is the bottom spectrum?

• an emission spectrum
• an absoption spectrum
• neither
• both 

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The arrows pointing down represents...

• photon absorption
• proton emission
• electron absorption
• electron transition

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The parallel lines represents...

• energy levels of the atom
• energy levels of the electrons
• energy levels of the photons
• energy levels of the nucleus

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Light is emitted when electrons ...

• jump from high to low 
• jump from low to high 
• either of these
• none of these

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As the energy level increases the difference in the energy level ...

• increases
• decreases
• stays the same
• none of these

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Each element produces its own pattern of emission spectra lines because each element has its own distinct

• Speed of light

• Electron configuration

• Number of neutrons

• None of these

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The color of emitted light with the LONGEST wavelength is

• violet

• green

• red

• indigo

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