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Simple mcqs question

  1. May 18, 2018 at 8:27 AM #1
    why formation of a cation an endothermic process,


    a potassium cation is smaller than potassium atom , doesn't that mea that heat is released ? lower enery atom(cation)

    is that the reason that we put energy to ionize the atom? (heat absorbed endo thermic)
     
  2. jcsd
  3. May 18, 2018 at 9:23 AM #2

    Borek

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    Staff: Mentor

    Size change has no correlation with the reaction heat.

    Do you know what ionization energy is?
     
  4. May 18, 2018 at 9:39 AM #3
    the energy we put to pull of the electron ,
     
  5. May 18, 2018 at 11:24 AM #4

    Borek

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    Staff: Mentor

    And why is that ionization requires energy?
     
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