Problem: Which of the following elements has the largest second ionization energy (IE2)?A. LiB. BC. OD. FE. Na

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FREE Expert Solution

Ionization energy (I. E.) is the energy required to remove an electron from a gaseous atom or ion.

First I.E. corresponds to removing the first valence electron from a neutral atom

 Second I.E. refers to removing a second electron

 Third I.E. refers to removing the third electron


First ionization energy → removing the first valence electron

Li → 1s22s1
B → 1s22s22p1
O → 1s22s22p4
F → 1s22s22p5
Na → 1s22s22p63s1      


Second ionization energy → removing the second electron from X+ ion

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Problem Details

Which of the following elements has the largest second ionization energy (IE2)?

A. Li

B. B

C. O

D. F

E. Na

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Our tutors have indicated that to solve this problem you will need to apply the Periodic Trends: Ionization Energy concept. You can view video lessons to learn Periodic Trends: Ionization Energy. Or if you need more Periodic Trends: Ionization Energy practice, you can also practice Periodic Trends: Ionization Energy practice problems.

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Based on our data, we think this problem is relevant for Professor Guloy's class at UH.