NCERT Solutions For Class 12 Chemistry Chapter 8: The d- and f - Block Elements

NCERT Solutions for Class 12 Chemistry Chapter 8 d and f Block Elements deals with the general properties of the transition elements and inner transition elements in d block and f block. Some of the important topics of d and f block elements include:

• d Block Elements
• f Block Elements
• Actinoids
• Inner Transition Elements
• Magnetic Properties of Transition Elements

Expected no.of questions: About 2 to 4 questions of total 7 marks

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 8 pdf

---

NCERT Solutions for Class 12 Chemistry Chapter 8

The NCERT Solutions for class 12 Chemistry Chapter 8 are as given below. 

---

Class 12 Chemistry d & f Block Elements – Important Topics

d Block Elements Properties

• The d block elements are those that have partially filled d orbitals.
• The general electronic configuration of d block elements are (n-1)d⁵ns¹ or (n-1)d¹⁰ns¹.
• They possess multiple oxidation states.
• Atomic radii decreases as we move from lower group to higher group.
• They exhibit Lanthanide contraction.

f Block Elements Properties

• The f block elements are those that have partially filled f orbitals.
• They are also called inner transition elements.
• Inner transition elements generally are the members of group 3 but they can be seen separately as the f block elements.
• f Block elements has two series – Lanthanides and Actinides.
• They exhibit variable oxidation states.
• Atomic radii decreases along the f block series due to lanthanide contraction.
• They exhibit radioactivity.

---

Also Read:

Check-Out: