Highest second ionization energy of elements

  1. Which element in each of the following sets would you expect to have the highest second ionization energy? How do I figure this out?

    a. Na, Mg, Al b. Na, K, Fe c. Li, Be, Mg

    Can you help me?

    Thanks
     
  2. jcsd
  3. cronxeh

    cronxeh 1,232
    Gold Member

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