Psi Ap Chemistry Periodic Trends Mc Review Periodic Law And The Quantum Model Worksheet Page 9
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2738. Which of the following best explains why the 1s peak in the nitrogen spectrum has a
lower binding energy compared to the 1s peak in the oxygen spectrum?
(A) Nitrogen atoms have a 3 electrons in their p subshell.
(B) Oxygen experience more electron-electron repulsions.
(C) Nitrogen has a larger atomic radius.
(D) Electrons in the p subshell of oxygen atoms provide more shielding than those in nitrogen
atoms.
(E) Nitrogen atoms have a smaller nuclear charge and coulombic attraction than oxygen
atoms.
39. Given the fact that both elements are in the same period, what information from the PES
spectra indicates that oxygen would have a smaller atomic radius?
(A) The number of peaks
(B) The intensity of the peaks
(C) Binding energy of the peaks
(D) A and C
(E) B and C
40. What information from the PES spectra above best accounts for nitrogen having smaller
1
ionization energy than oxygen?
st
(A) The number of peaks
(B) The intensity of the core electron peaks
(C) The intensity of the valence electron
(D) Binding energy of the valence electron peaks
(E) A and C
41. What trend would you predict for the binding energies of valence electrons moving down
a group on the periodic table?
AP Chemistry
Periodic Trends
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