Electrons and Light

For an electron to change from ground state to an excited stated it must...

• Absorb energy
• Release energy

True or False: The ground state is the highest energy state of an atom.

• True

• False

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What is the light that you can see called?

• observatory light

• ultraviolet light

• visible light

• infrared light

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Which of the following is FALSE about electromagnetic spectrum?

• EM waves travel at the speed of light
• Energy of waves is given by, E = hf
• Oscillating electric and magnetic field
• High energy photon have long wavelength

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NGSS.HS-PS4-1

Visible spectrum is shown below. Which light has the highest energy?

• Red light
• Yellow light
• Green light
• Blue light

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Diagram below shows

• Emission spectrum

• Absorption spectrum

• Line absorption spectrum

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The _______________ determines the color of visible light. 

• wavelength
• speed
• amplitude
• light

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Emission of light from an atom occurs when an electron

• drops from a higher to a lower energy level.
•    jumps from a lower to a higher energy level.   
•    moves within its atomic orbital.
• falls into the nucleus.

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For an electron to change from ground state to an excited stated it must...

• Absorb energy
• Release energy

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When talking about energy levels in an atom, what is an "excited state"?

• The highest energy state of an atom.
• Any level higher than the ground state.
• The lowest energy state of an atom.
• When an atom loses an electron

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