Multiple Choice Questions

A laser pulse with wavelength 510 nm contains 4.85 mJ of energy.
  • 1.24×10^16
  • 1.60×10^143.16×10^157.40×10^134.02×10^13
  • n=3,l=2,ml=3
  • 6.06 nm
List the following types of electromagnetic radiation in order of increasing wavelength.List the following types of electromagnetic radiation in order of increasing energy per photon.
  • 1.60×10^143.16×10^157.40×10^134.02×10^13
  • ultravioletinfraredmicrowavesradioradiomicrowavesinfraredultraviolet
  • 3.14×10^−191.63×10^−245.90×10^−19
  • 6.15x10^142.45×10^95.77×10^18
Which set of quantum numbers cannot specify an orbital?
  • 1.24×10^16
  • 6.06 nm
  • an electron in a 2s orbital
  • n=3,l=2,ml=3
According to the quantum-mechanical model for the hydrogen atom, which of the following electron transitions would produce light with the longer wavelength: 2p→1s or 3p→1s?
  • 2p→1s
  • 1.60×10^143.16×10^157.40×10^134.02×10^13
  • t= 760s
  • 344 nm
The distance from the sun to Mars is 2.279×108 km .How long does it take light to travel from the sun to Mars?
  • t= 760s
  • 1.24×10^16
  • 6.06 nm
  • 2p→1s
Which electron is, on average, closer to the nucleus: an electron in a 2s orbital or an electron in a 3s orbital?
  • n=3,l=2,ml=3
  • 6.15x10^142.45×10^95.77×10^18
  • 1.60×10^143.16×10^157.40×10^134.02×10^13
  • an electron in a 2s orbital
Calculate the energy of a photon of electromagnetic radiation at each of the following wavelengths.632.8 nm (wavelength of red light from a helium-neon laser)12.24 cm (wavelength of a microwave oven)337.1 nm (wavelength of a nitrogen laser)
  • 2.18×10^−18 J 91.2 nm
  • 6.15x10^142.45×10^95.77×10^18
  • 3.14×10^−191.63×10^−245.90×10^−19
  • 1.60×10^143.16×10^157.40×10^134.02×10^13
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each of the following transitions.n=4→n=3n=5→n=1n=5→n=4n=6→n=5
  • 1.60×10^143.16×10^157.40×10^134.02×10^13
  • 3.14×10^−191.63×10^−245.90×10^−19
  • 6.15x10^142.45×10^95.77×10^18
  • 1.24×10^16
0 h : 0 m : 1 s

Multiple Choice Questions
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