5.7: New Page
- Page ID
- 329235
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Q1
- Show the electron configuration for the transition metal cation using the box notation in the table.
- Indicate if the complex is paramagnetic or not in the final column of the table.
- Complete the ‘oxidation number’ column of the table below by working out the oxidation number of each of the transition metal cations.
- Complete the ‘d configuration’ column in the table by working out z for each of the transition metal ions.
This has been completed for the complexes in the first two rows of the table.
| Coordination Compound or Complex | Oxidation Number | d Configuration | Electron Arrangement | Paramagnetic? |
| K2[NiCl4] | +2 | d8 |  |
Yes |
| [Cr(en)3]Br3 | +3 | d3 |  |
Yes |
| Na[MnO4] | +7 | d0 |  |
No |
| (NH4)2[CoCl4] | +2 | d7 |  |
Yes |
| [Cr(NH3)5(H2O)]Cl3 | +3 | d3 | |
Yes |
| [Zn(en)2Cl2] | +2 | d10 |  |
No |
| Pt(NH3)Cl2 | +2 | d8 | |
Yes |