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Question 4.12: Indicate the element in each set that has the higher ionizat......

Indicate the element in each set that has the higher ionization energy and explain your choice.
a.  K or Na                                 b.  Mg or Cl                                 c.  F, N, or C

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a.  Na. In Na, an electron is removed from a sublevel closer to the nucleus, which requires a higher ionization energy for Na compared with K.
b.  Cl. The increased nuclear charge of Cl increases the attraction for the valence electrons, which requires a higher ionization energy for Cl compared to Mg.
c.  F. The increased nuclear charge of F increases the attraction for the valence electrons, which requires a higher ionization energy for F compared to C or N.

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