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InterviewSolution
| 1. |
Inert pair effect? |
| Answer» The\xa0inert pair effect\xa0is the tendency of the two electrons in the outermost atomic s-orbital to remain unshared in compounds of post-transition metals.\xa0The\xa0inert pair effect\xa0explains why common ions of Pb are Pb4+\xa0and Pb2+, and not just Pb4+\xa0as we might expect from the octet rule.\xa0Screening effect\xa0: The\xa0shielding effect\xa0describes the balance between the pull of electrons on valence electrons and the repulsion forces from inner electrons. | |