Question

12. Describe transition elements under following heads:

(a) Catalytic property (b)atomic size (c)variable oxidation states



​

Answer 1

Explanation:

Oxidation state of an element is defined as the degree of oxidation (loss of electron) of the element in achemical compound. Transition elements exhibit a wide variety of oxidation states in their compounds. For example: manganese shows all the oxidation states from +2 to +7 in its compounds.

Answer 2

Answer:

Explanation:

Manganese exhibit the largest number of oxidation states. It shows the oxidation states +2, +3, +4, +5 ,+6, and + 7. The reason for that is the maximum number of unpaired electrons present in its outermost shell i.e. 3d54s2

MARK THIS ANSWER AS THE BRAINLIEST!!