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| 1. |
O2^2- is diamagnetic and O2- paramagnetic. Why? |
| Answer» O2 is paramagnetic because it has two unpaired electronsIt shows that all the electrons in oxygen are PAIRED, so oxygen should be DIAMAGNETIC.Yet oxygen is paramagnetic.The Lewis structure of O2 gives a misleading impression.If any of the MOLECULAR orbital CONTAINS unpaired electrons, it is regarded as paramagnetic. Since O2 has (pi*2Px1=pi*2Py1) config. its paramagnetic while O2²- has (pi*2Px=pi*2Py²) config. it is diamagnetic. | |