Question

if d block elements are 40 and f block are 28 .then why total transition elements are 58 .. Shouldn't they be 68???​

Answer 1

After studying this Unit, you will be

able to

• learn the positions of the d– and

f-block elements in the periodic

table;

• know the electronic configurations

of the transition (d-block) and the

inner transition (f-block) elements;

• appreciate the relative stability of

various oxidation states in terms

of electrode potential values;

• describe the preparation,

properties, structures and uses

of some important compounds

such as K2Cr2O7 and KMnO4;

• understand the general

characteristics of the d– and

f–block elements and the general

horizontal and group trends in

them;

• describe the properties of the

f-block elements and give a

comparative account of the

lanthanoids and actinoids with

respect to their electronic

configurations, oxidation states

and chemical behaviour.