The chemistry of actinoids is not so smooth as that of lanthanoids. Give reason.

Explain giving reason: (i) Treansition metals and their compounds generally exhibit a paramagnetic behave . (ii) The chemistry of actinoids is not so smooth as that of lanthanoids.

The chemistry of the actinoid elements is not so smooth as that of the lanthanoid. Justify this statement by giving some example from the oxidation state of these elements

(a) (i) How is the variability in oxidation states of transition metals different from that of the p-block elements ? (ii) Out of Cu^(+) and Cu^(2+) , which ion is unstable in aqueous solution and why ? (iii) Orange colour of Cr_(2)O_(7)^(2-) ion changes to yellow when treated with an alkali. Why ? (b) Chemistry of actinoids is complicated as compared to lanthanoids. Give two reasons.

Compare the chemistry of actinoids with that of the lanthanoids with special reference to:

Assertion:The chemistry of the early actinoids is more comlicated than the corresponding lanthanoids. Reason:Outer electronic configuration of actinoids is (n-2)f^(1-14)(n-1)d^(0-1)ns^(2) .

Larger number of oxidation states are exhibited by the actinoids then those by the lanthanoids, the main reason being

The chemistry of lithium is very similar to that to that of magnesium even though they are placed in different groups. Its reason is

Why actinoid contraction is more than lanthanoid contraction

The tendency to form complexes of the lanthanoids is ul "more" than that of actinoids.

Actinoids in general show more oxidation states than the lanthanoids. The main reason for this is