Transition elements form a large number of complex compounds. Why?

Transition elements are

Account for the following:-Transition elements form a number of interstitial compounds.

Transition elements are colorured

Aren't transition elements metals?

a) write the name of any two transition elements. b) Transition elements form colored compounds.Why? c) Write a characteristic of transition elements.

Explain giving reason:-The transition metals generally form coloured compounds.

Explain giving reasons: i. Transition metals and many of their compounds show paramagnetic behaviour. ii. The enthalpies of atomisation of the transition metals are high. iii. The transition metals generally form coloured compounds. Iv. Transition metals and their many compounds act as good catalyst.

The first transition element is

Transition elements are d-block elements, with some exceptions. Usually they are paramagnetic. They show variable oxidation states. They and their compounds show catalytic property Zn (atomic number 30) is not a transition element, though it is a d-block element. Why?

Transition elements act as catalysts. Why?