d- and f-Block Elements — Revision Notes
JEE Advanced · Chemistry
Quick revision notes for d- and f-Block Elements — key concepts, formulas, and definitions for JEE Advanced Chemistry preparation.
Revision Notes — d- and f-Block Elements
Key concepts, formulas, and definitions from d- and f-Block Elements for JEE Advanced Chemistry preparation.
Key Topics to Revise
Introduction and Electronic Configuration
- d-block elements: General electronic configuration (n-1)d¹⁻¹⁰ ns¹⁻²
- Transition elements have incompletely filled d-orbitals in ground state or stable oxidation states
- Zn, Cd, Hg are non-typical transition elements (completely filled d-orbitals)
Physical Properties
- Metallic character: High tensile strength, thermal/electrical conductivity, metallic luster
- High melting and boiling points due to strong metallic bonding involving d-electrons
- Atomic radii trend: Generally decrease across period, then remain constant, slight increase at end
Variable Oxidation States
- Multiple oxidation states due to small energy difference between (n-1)d and ns orbitals
- Common oxidation states differ by unity (+2, +3, +4, +5, etc.)
- Maximum oxidation state = Group number (up to Mn), then decreases
Ionization Energies and Electrode Potentials
- Ionization energies generally increase across series with some irregularities
- IE₁ values lie between s-block (lower) and p-block (higher) elements
- High IE₂ for Cr and Cu due to stable d⁵ and d¹⁰ configurations respectively
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What topics are covered in d- and f-Block Elements for JEE Advanced?
d- and f-Block Elements is an important chapter in JEE Advanced Chemistry. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Introduction and Electronic Configuration, Physical Properties, Variable Oxidation States, Ionization Energies and Electrode Potentials.
How important is d- and f-Block Elements for JEE Advanced?
d- and f-Block Elements is a frequently tested chapter in JEE Advanced Chemistry. Questions from this chapter appear regularly in previous year papers. There are 79 practice questions available for this chapter.
How to prepare d- and f-Block Elements for JEE Advanced?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.