Chapter 13 Review Electrons in Atoms

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Chapter 13 ReviewElectrons in Atoms

• Milbank High School

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Chapter 13 - Review

• What scientist developed an atomic theory in the
  early 1800s?
• Who discovered the electron?
• How does the energy of an electron change when
  the electron moves closer to the nucleus?

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Chapter 13 - Review

• What scientist developed the quantum mechanical
  model of the atom?
• How many energy sublevels are there in the second
  principal energy level?
• What is the maximum number of d orbitals in a
  principal energy level?

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Chapter 13 - Review

• What is the maximum number of orbitals in the p
  sublevel?
• What is the maximum number of electrons in the
  second principal energy level?

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Chapter 13 - Review

• When an electron moves from a lower to a higher
  energy level, the electron ____ a quantum of
  energy.
• What did Rutherfords experiment demonstrate?
• The quantum mechanical model exactly predicts
  which characteristic of electrons in an atom?

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Chapter 13 - Review

• What is the probability of finding an electron
  within the region indicated by the drawn electron
  cloud?
• What types of atomic orbitals are in the third
  principal energy level?

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Chapter 13 - Review

• Which of the following energy levels has the
  lowest energy? 3d or 4s
• If three electrons are available to fill three
  empty 2p atomic orbitals, how will the electrons
  be distributed in the three orbitals?

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Chapter 13 - Review

• What is the next atomic orbital in the series
  1s, 2s, 2p, 3s, 3p, _?_
• How many unpaired electrons are there in a sulfur
  atom? (atomic number 16)

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Chapter 13 - Review

• What is the number of electrons in the outermost
  energy level of an oxygen atom?
• How many half-filled orbitals are there in a
  bromine atom?
• What is the electron configuration of potassium?

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Chapter 13 - Review

• What statement says that no more than two
  electrons can occupy an atomic orbital, and that
  two electrons in the same orbital have opposite
  spins?

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Chapter 13 - Review

• In order to occupy the same orbital, two
  electrons must have _____.
• According to the Aufbau principle, electrons
  enter orbitals of _____ energy first.

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Chapter 13 - Review

• Which of the following electron configurations is
  the most stable? 4d55s1 or 4d45s2
• Stable electron configurations are likely to
  contain _____.

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Chapter 13 - Review

• Which color of visible light has the shortest
  wavelength?
• What are quanta of light called?
• Who predicted that all matter can behave as waves
  as well as particles?

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Chapter 13 - Review

• The amplitude of a wave is the measure of the
  ______.
• What is the wavelength of an electromagnetic wave
  that travels at 3 x 108 m/s and has a frequency
  of 60 Hz?
• What is the approximate energy of a photon having
  a frequency of 4 x 107 Hz? (h 6.6 x 10-34 J.s)

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Chapter 13 - Review

• What is the approximate frequency of a photon
  having an energy of 5 x 10-24 J? (h 6.6 x 10-34
  J.s)

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Chapter 13 - Review

• The lowest energy state of an atom is called the
  ______.
• What is the approximate mass of a particle having
  a wavelength of 1 x 10-7 m, and a speed of 1 m/s?
  (h 6.6 x 10-34 J.s)