How would you define a transition element? List the properties associated with transition elements.

How do the following properties vary in the transition element:

Ionic character.

How do the following properties vary in the transition elements?

$\left(\mathrm{I}\right)$ basic properties

How do the following properties vary in the transition elements: 

Stability of the various oxidation states.

How do the following properties vary in the transition elements: 

Ability to form complexes?

Give examples of, and suggest reasons for, the following features of transition metal chemistry:

The Halides become more covalent with increasing oxidation state of the metal and are more susceptible to hydrolysis.

Write notes on the following:

The effective Atomic Number rule.