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College Quantum Physics and the Atom Questions

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College Quantum Physics and the Atom
Which of the following is a correct conclusion of the photoelectric effect?
  1. Light at a 90º angle ejects electrons out of a material
  2. Light at a 45º angle ejects electrons out of a material
  3. Incident light ejects electrons from a material
  4. None of the above
College Quantum Physics and the Atom
What is the value of energy associated with the second energy level of an atom?
  1. -5.445×10-19J
  2. -8.712×10-20J
  3. -2.42×10-19J
  4. -2.178×10-18J
College Quantum Physics and the Atom
What is the energy associated with an electron in the fifth energy level of a hydrogen atom?
  1. -2.178×10-18J
  2. -5.445×10-19J
  3. -2.42×10-19J
  4. -8.712×10-20J
College Quantum Physics and the Atom
Which of the following equations can be used to solve for wavelength in diffraction patterns?
  1. λ=hmv
  2. λ=vmh
  3. λ=hm×v
  4. λ=hmv
College Quantum Physics and the Atom
Which of the following equations represents the energy of a photon, in terms of wavelength?
  1. ∆E=nhv
  2. E=hcλ
  3. E=mc2
  4. E=hc
College Quantum Physics and the Atom
Calculate ∆E when the following transition occurs in a hydrogen atom: n=2→n=6.
  1. -5.45×10-19J
  2. -6.05×10-20J
  3. 4.84×10-19J
  4. -4.84×10-19J
College Quantum Physics and the Atom
What is the wavelength of an emitted photon, if the associated energy change is 1.36×10-17J?
  1. 6.84×108m
  2. 3.41×107m
  3. 6.84×107m
  4. 3.41×108m
College Quantum Physics and the Atom
Which of the following is represented by |ψ2|?
  1. Wave functions, also known as orbitals
  2. A probability distribution
  3. The energy of the particle
  4. (b) and (c)
College Quantum Physics and the Atom
Which of the following correctly describes one implication of the solution to Schrödinger's equation?
  1. Energy occurs in half-number multiples
  2. Energy always only contains one value
  3. Energy occurs in whole-number multiples
  4. Energy occurs in quarter-number multiples
College Quantum Physics and the Atom
Which of the following equations correctly represents the motion of one particle along the x-axis in space?
  1. h24π2md2ψdx2+Vψ=Eψ
  2. -h24π2md2ψdx2+Vψ=Eψ
  3. h28π2md2ψdx2+Vψ=Eψ
  4. -h28π2md2ψdx2+Vψ=Eψ
College Quantum Physics and the Atom
Which of the following represents the shape of p orbitals?
  1. rings
  2. lobes
  3. spherical structures
  4. a variety of shapes
College Quantum Physics and the Atom
Which of the following describes the energy quantities involved in the electrons in different energy levels of an atom?
  1. Indistinct energy quantities
  2. Varying energy quantities
  3. Fixed energy quantities
  4. Both (a) and (b)
College Quantum Physics and the Atom
Which of the following correctly describes an orbital where the total spin of two electrons is equivalent to 0?
  1. paramagnetic
  2. multimagnetic
  3. diamagnetic
  4. none of the above
College Quantum Physics and the Atom
Which of the following equations can be used to calculate changes in energy in a hydrogen atom?
  1. ∆E=2.178×10-18J(1n2f-1n2i)
  2. ∆E=2.178×10-18J(1n2i-1n2f)
  3. ∆E=-2.178×10-18J(1n2i-1n2f)
  4. ∆E=-2.178×10-18J(1n2f-1n2i)
College Quantum Physics and the Atom
What is the uncertainty in the position of an electron, ∆x, assuming that ∆v=0.94 m/s?
  1. 6.16×10-5m
  2. 6.16×10-4m
  3. 3.08×10-5m
  4. 3.08×10-4m
College Quantum Physics and the Atom
Which of the following represents the simplified function involved in the Schrödinger Equation?
  1. ˆHψ=Eψ
  2. ˆHψ=Eψ
  3. ˆHψ2=Eψ
  4. None of the above
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