Transition elements exhibit _____ oxidation states.

The transition elements exhibit variable oxidation states because_______________.

Transition metals exhibit variable oxidation states. It is because of

Name the elements of 3d series. Give their electronic configuration. Explain why transition metals exhibit variable oxidation states.

Explain the following : (i) Most of the transition elements show variable oxidation states. (ii) Many transition elements and their compounds are paramagnetic .

(a) Define transition elements. (b) Give general electronic configuration of f-block elements.(c ) Most of transition elements are coloured, why? (d ) Transition elements show variable oxidation states, why?