Problem: What is the electron configuration using core notation for  Se2−?

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We can determine the electron configuration of Se2- by determining the ground-state electronic configuration of selenium (Se) first by referring to the periodic table and locating the position of Se in the periodic table.

Ground-state means that the element is in its lowest energy form (not in excited state). Se has no charge which means that no electrons are removed or added in the atom.

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What is the electron configuration using core notation for  Se2−?

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

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Based on our data, we think this problem is relevant for Professor Corwin's class at American River College.