Compare the chemistry of actinoids with that of lanthanoids with special reference to-
(i) electronic configuration
(ii) oxidation state
(iii) atomic and ionic sizes
(iv) chemical reactivity

Compare the chemistry of actinoids with that of the lanthanoids with reference to (i) electronic configuration (ii) oxidation state (iii) chemical reactivity

Compare the chemistry of actinoids with that of lanthanoids with special reference to- (i) electronic configuration (ii) atomic and ionic radii (iii) oxidation states.

A transition metal ion has electronic configuration [Ar] 3d^7 in its dipositive oxidation state. Its atomic number is

Which is the last element in the series of actinoids? Write its electronic configuration. Comment on its oxidation states.

Discuss the general characteristics of group 15 elements with reference to their electronic configuration, atomic size, ionisation enthalpy and electronegativity?

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

Write down the electronic configuration of (i) Cr^(3+) (ii) Cu^(+) (iii) Co^(2+) (iv) Mn^(2+)

Among the following out electronic configuration of atoms the highest oxidation state is achieved by which of the following :

(i) Which is the last element in the series of the actinoids? Write the electronic configuration of this element. Comment on the possible oxidation state of this element. (ii) What is lanthanoid contraction? Name an important alloy which contains some of the lanthanoid metals.