Chemical Reactivity Group IV Elements Reaction with Halogens and the Inert Pair Effect

The video tutorial discusses the carbon family elements forming tetrahalides of type MX4, which are covalent and exhibit SP3 hybridization, resulting in a tetrahedral shape. It highlights that only SNF4 and PBFO are ionic among these halides. The thermal stability and volatility of tetrahalides decrease down the group, inversely proportional to their molecular weight. The video also explains why PBI4 does not exist due to the strong oxidizing nature of the PB4+ ion, which is less stable than the PB2+ ion due to the inner pair effect.

What is the significance of the inner pair effect in the stability of PB2+ and PB4+ ions?

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How does PB4+ ion convert into PB2+ ion?

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