Problem: Identify two ions that have the following ground-state electron configurations.[Ar]3d5

FREE Expert Solution

For a Neutral element:

  • Atomic number = number of protons = number of electrons


For ions:

  • anion (negative charge) → gains e-
  • cation (positive charge) → lose e-


[Ar]3d5

  • [Ar] = atomic number: 18
  • Total electrons: 18 + 5 = 23 


Cation forms after losing electrons

  • transition metals lose e- from highest energy orbital (4s) first:
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Problem Details

Identify two ions that have the following ground-state electron configurations.

[Ar]3d5

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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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