Atomic Structure Preparation Tips for IIT JEE | askIITians

1

• Atomic Structure

2

• History of Atom
• It was the Greek philosopher Democritus
  (1460-370 BCE), who had a thought in his mind for
  first time ever in history  that if we start
  breaking any matter in small particles
  continually, there will come a point from where
  it will not be possible to break it further into
  smaller particle. i.e. matter cannot be
  infinitely divided. 
• But the theory of Democritus was rejected by
  two other well-known and more popular Greek
  Philosophers Aristotle and Plato. According to
  them matter was made up of four elements, air,
  water, fire and earth. It was only after 2000
  years that someone supported the theory of
  Democritus. Name of that person was John Dalton.
  He proposed a theory known as Daltons atomic
  theory.

3
Daltons Atomic Theory
4

• The various topics that form a part of
  atomic structure include
• Sub-atomic Particles
• Atomic models
• Dual nature of Matter
• Photoelectric Effect
• Electromagnetic Radiations
• Quantum Mechanical Model of Atoms
• Electronic Configuration
• Discovery of Electron Proton and Neutron
• You can get details explanation for these
  subtopics on the study material page of atomic
  structure.

5

•  Important Formulas 

6

• Atomic Models

7

• How important is atomic structure for exams?
• Atomic structure is a very important and
  comparatively easy to score topic. Weightage of
  this chapter in IIT JEE, AIPMT and CBSE is about
  2, 3 and 8 of the total marks respectively.

8

• What are the best books for the preparation of
  Atomic Structure?
• Some of the books which are considered to be
  best for preparation of this section are
• J.D Lee
• O.P Tondon
• NCERT Text book
• NCERT text books are one of the best books for
  preparing any topic of chemistry for CBSE and
  AIPMT. For IIT JEE one should refer to other
  books like J.D Lee and O.P Tondon also.

9

• How to Prepare Atomic Structure for IIT JEE?
• First of all study this chapter from NCERT Text
  book. Read the chapter number of times and try to
  understand each and every concept clearly.
• Take help of animation and videos which you will
  find easily on web, to understand the atomic
  models, photoelectric effect and other related
  topics. It is very important to have a clear
  picture of experimental setup and observations in
  your mind
• Once you get all the concepts of chapter, move to
  the numeric problems.
• Start with the solved examples given in the book
  and slowly move to the unsolved ones.
• Once you solve all the questions given in NCERT
  Text book, you can move to the other books also
  and try to solve more problems given there.
• After finishing the NCERT Text book, you can try
  J.D Lee and O.P Tondon also to gain in depth
  knowledge of the chapter.
• Look into the previous year question papers for
  the questions related to the atomic structure and
  try to solve them all.
• You will find that most of the numeric problems
  are from Behrs atomic theory and hydrogen
  spectrum. These two topics are very important by
  exam. Try to solve as much questions as possible
  from these two topics.

10
Free Coaching Consultation

• For a free demo class or consultation, please
  contact
• Email info_at_askIITians.com
• Call us at 91 (120) 4616500 (Extn.204)
• Visit www.askIITians.com