Problem: Which ion with a +1 charge has the electron configuration 1s22s22p63s23p63d104s24p6? Which ion with a –2 charge has this configuration?

FREE Expert Solution

# of electrons = atomic number of neutral element 

  • cation → loses electrons (same number of e- to its charge)
  • anion → gains electrons (same number of eto its charge)


Electron configuration: 1s22s22p63s23p63d104s24p6

  • # of electrons = 36


Atomic number of Neutral element forming ion with charge -2 = 36 - 2 = 34 → Se

  • gained 2e- (subtract 2e- to get neutral element)
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Problem Details

Which ion with a +1 charge has the electron configuration 1s22s22p63s23p63d104s24p6? Which ion with a –2 charge has this configuration?

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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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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.