Question: Why do transition elements show variable oxidation states? 1. Name the elements showing a maximum number of oxidation states among the first series of

Why do transition elements show variable oxidation states? 1. Name the elements

Why do transition elements show variable oxidation states? 1. Name the elements showing a maximum number of oxidation states among the first series of transition metals from Sc (Z = 21) to Zn (Z=30) 2. Name the element which shows only +3 oxidation state What is lanthanide contraction? Name an important alloy that contains some of the lanthanoid metals

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