Problem: Write the electron configuration for  O2–.

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We’re being asked to determine the electron configuration of O2-

Before we can do that, we have to first write the electron configuration of a neutral ground state oxygen (O).

You can determine the ground-state electron configuration of Oxygen (O) by locating the position O in the periodic table.

Ground-state means that the element is in its lowest energy form (not in excited state). Neutral oxygen means it has no charge, meaning no electrons are removed or added in the atom.

You see in the above illustration of the periodic table that Ba is in Period 2, Group 6A, and p-block

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Write the electron configuration for  O2–.

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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 The Electron Configuration: Ions concept. You can view video lessons to learn The Electron Configuration: Ions. Or if you need more The Electron Configuration: Ions practice, you can also practice The Electron Configuration: Ions practice problems.

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

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.