Problem: Do Cr3+ and V2+ have the same or different electron configurations?

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We’re being asked if Cr3+ and V2+ have the same or different electron configurations


Before we can do that, we have to first write the electron configuration of a neutral ground state for both vanadium (V) and chromium (Cr). 


You can determine the ground-state electron configuration of Vanadium (V) and Chromium (Cr) by locating the position of V and Cr in the periodic table.

Ground-state means that the element is in its lowest energy form (not in excited state). 


You see in the above illustration of the periodic table that V is in Period 4 and d-block and Cr is in Period 4 and d-block.

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Do Cr3+ and V2+ have the same or different electron configurations?

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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 Murphy's class at BU.