Ionization energy is the energy required to remove an electron from a gaseous element.
The second Ionization energy basically means it is the energy required to remove the second electron.
The trend for ionization energy is shown below:
The trend in second ionization energy for the elements from lithium to fluorine is not a smooth one. Predict which of these elements has the highest second ionization energy and which has the lowest and explain. Of the elements N, O, and F, O has the highest and N the lowest second ionization energy. Explain.
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Based on our data, we think this problem is relevant for Professor Lee, Ragogna & Booker's class at University of Western Ontario.