Elements which generally exhibit multiple oxidation states and whose ions are usually coloured are

Which element exhibits variable oxidation states ?

(a) Describe the general trends in the following properties of the first series of the transition elements: (i) Stability of +2 oxidation state (ii) Formation of oxometal ions (b) Assign reason for each of the following: (i) Transition elements exhibit variable oxidation states. (ii)Transition metal ions are usually coloured

Assign reasons for each of the following (i) Trasitiono elements exhibit variable oxidation sates. (ii) Transition metal ions are usually coloured.

The element which usually show variable oxidation states is :

The element with atomic number 9 will exhibit oxidation state of

Identify the set of elements which do not exhibit multiple oxidation states

Transition metal usually exhibit highest oxidation states in their

The element that does not exhibit positive oxidation state is.