Problem: Identify the element: An excited state of this element has the electron configuration 1s2 2s2 2p5 3s1.

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Total # of electrons from electron configuration = Atomic number (ground state) 


  • 1s2 2s2 2p5 3s→ # of e-'s = 2+2+5+1 = 10
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Problem Details

Identify the element: An excited state of this element has the electron configuration 1s2 2s2 2p5 3s1.

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Our tutors have indicated that to solve this problem you will need to apply the Molecular Orbital Theory concept. You can view video lessons to learn Molecular Orbital Theory . Or if you need more Molecular Orbital Theory practice, you can also practice Molecular Orbital Theory practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.