Problem: In one area of Australia, the cattle did not thrive despite the presence of suitable forage. An investigation showed the cause to be the absence of sufficient cobalt in the soil. Cobalt forms cations in two oxidation states, Co2+ and Co3+. Write the electron structure of the two cations.

🤓 Based on our data, we think this question is relevant for Professor Cummings & Dillon & McCoy's class at FSU.

FREE Expert Solution

Recall:

s orbital  can hold a maximum of 2 electrons
p orbitals → can hold a maximum of 6 electrons
d orbitals → can hold a maximum of 10 electrons
f orbitals → can hold a maximum of 14 electrons


Atomic number of Co = 27   27 electrons (neutral element)

  • Electron configuration of Neutral Co: 1s22s22p63s23p64s23d7
  • Noble gas electron configuration: [Ar]4s23d7
    • nearest noble gas before Co = Argon (Ar)
  • Charge = +2   subtract 2 electrons (lost e-) from (outermost shell) highest energy, n  
  • Charge = +3   subtract 3 electrons (lost e-) from (outermost shell) highest energy, n  
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Problem Details

In one area of Australia, the cattle did not thrive despite the presence of suitable forage. An investigation showed the cause to be the absence of sufficient cobalt in the soil. Cobalt forms cations in two oxidation states, Co2+ and Co3+. Write the electron structure of the two cations.

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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.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Cummings & Dillon & McCoy's class at FSU.

What textbook is this problem found in?

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.