Problem: Predict the ground-state electron configuration of the following ions. Write your answers in abbreviated form, that is, beginning with a noble gas in brackets.a) Cr2+b) Cu2+c) Co3+

FREE Expert Solution

In this problem, we are asked to determine the ground-state electron configuration of Cr2+, Cu2+, and Co3+.

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

Locating Cr, Cu, and Co in the periodic table:

You will see in the above illustration of the periodic table that:

  • Cr → Period 4, Group 6B (Group 6)
  • Co → Period 4, Group 8B (Group 9)
  • Cu → Period 4, Group 1B (Group 11)
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Problem Details

Predict the ground-state electron configuration of the following ions. Write your answers in abbreviated form, that is, beginning with a noble gas in brackets.

a) Cr2+

b) Cu2+

c) Co3+

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What scientific concept do you need to know in order to solve this problem?

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