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Explain giving reasons : (i) Transition metals and their compounds generally exhibit a paramagnetic behaviour. (ii) The chemistry of actinoids is not so smooth as that of lanthanoids. |
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Answer» Solution :(i) The TRANSITION elements involve the partial filling of d-subshells. Most of the transition METAL ions have unpaired electrons in d-subshell (from `d^(1 to 10))` and therefore they give rise to paramegnetic CHARACTER. (ii) In lanthanoids, the DIFFERENTIATING ELECTRON enters in 4f-orbital but in actinoids the differentiating electron enters in 5f-orbital which makes its chemistry slightly typical. |
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