# Problem: Which reaction below represents the first ionization of O?a. O(g) + e- → O-(g)b. O+(g) + e- → O(g)c. O(g) → O+(g) + e-d. O-(g) + e- → O2-(g)e. O-(g) → O(g) + e-

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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 thfirst valence electron from a neutral atom

Second I.E. refers to removing a second electron

Third I.E. refers to removing a third electron.

###### Problem Details

Which reaction below represents the first ionization of O?

a. O(g) + e- → O-(g)

b. O+(g) + e- → O(g)

c. O(g) → O+(g) + e-

d. O-(g) + e- → O2-(g)

e. O-(g) → O(g) + e-

What scientific concept do you need to know in order to solve this problem?

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 Larsen's class at UH.