Question 25.2: Writing Electron Configurations for Transition Metals Write ...
Writing Electron Configurations for Transition Metals
Write the ground state electron configuration for Co^{3+}.
| Writing Electron Configurations | |
| Identify the noble gas that precedes the element and write it in square brackets. |
[Ar] |
| Count down the periods to determine the outer principal quantum level—this is the quantum level for the s orbital.
Subtract one to obtain the quantum level for the d orbital. If the element is in the third or fourth transition series, include (n – 2)f^{14} electrons in the configuration. |
Co is in the fourth period, so the orbitals used are: [Ar] 4s3d |
| Count across the row to see how many electrons are in the neutral atom and fill the orbitals accordingly. | Co has nine more electrons than Ar.
[Ar] 4s^23d^7 |
| For an ion, remove the required number of electrons, first from the s and then from the d orbitals. | Co^{3+} has three fewer electrons than the Co atom.
[Ar] 4s^03d^6 or [Ar] 3d^6 |
Related Answered Questions
Question: 25.10
Verified Answer:
Question: 25.9
Verified Answer:
Question: 25.6
Verified Answer:
Question: 25.5
Verified Answer:
Question: 25.1
Verified Answer:
Question: 25.4
Verified Answer:
Question: 25.3