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JEE Main - Atomic Structure Notes (Free PDF Download)

Last updated date: 23rd May 2024
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Achieve Success in JEE Main 2025: Atomic Structure Notes With Important Topics

Vedantu gives you special JEE Main Atomic Structure Notes with important topics to help you score well in JEE Main 2025. Master Teachers at Vedantu make these notes to help you do well. You can easily get these Notes for FREE as a PDF from Vedantu’s website. The most important feature of these notes is that they make concepts simple and have important ideas and theories in a short form.


JEE Main Revision Notes


Text, Images, Videos and PDF


JEE Main

Chapter Name:

Atomic Structure

Academic Session:



English Medium



Available Material:

Chapter-wise Notes with PDF

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Students must consider the Atomic Structure Notes PDF as a crucial resource because this chapter explains the fundamental building blocks of matter, delving into the structure of atoms and their components. It covers topics like subatomic particles, electron configuration, and the arrangement of elements in the periodic table. You can understand the significance of Atomic Structure in JEE Main by checking the information in the table provided below.

Year Wise Weightage of Questions: JEE Main Atomic Structure

Sl. No.


Average No. Of Questions Asked

Marks per Question

Total Marks





















To achieve your goals, prepare for your JEE Main exam 2025 with Vedantu’s Atomic Structure Notes PDF and JEE Main Chemistry Syllabus 2025.

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Atomic Structure JEE Main 2025: Important Topics

Here are a few Important topics students should consider when learning the Atomic Structure chapter. These subjects are selected from previous years' JEE Main exams. Therefore, before you get the Revision notes, review this list of significant topics from Atomic Structure.

  • Bohr Model of the Atom

  • Quantum Mechanical Model of the Atom

  • Wave Nature of Electrons

  • Atomic Spectra

  • Ionization Energy

JEE Chemistry Notes: Explore Chapters with 2025 Links

Explore structured JEE 2025 Chemistry Notes through easily accessible chapter-wise links. Delve into crucial subjects, comprehend fundamental ideas, and enhance exam readiness. Equip yourself with an advantage using these targeted notes.

Learn with Atomic Structure Notes and Score High in JEE Main 2025

Atomic Structure is the field of study of the structure of atoms. It deals with the atom’s composition, size, shape, and energy levels. The weightage of Atomic Structure in JEE Main is around 6-8%. This means that there are typically 3-4 questions asked from this chapter in the exam.

Students can also expect direct questions from this section, which makes it one of the scoring topics. Here are the few points that make the chapter high weightage. 

  • Essential Building Blocks: The atomic structure chapter is prominent in the JEE Main syllabus because it is the foundational basis for understanding chemistry.

  • Fundamental Nature: This chapter explores the intricate details of atoms, the basic constituents of matter, which are essential to comprehending chemical behavior.

  • Periodic Table Insights: Understanding atomic structure unlocks the periodic table's secrets, elucidating elements' trends and properties based on their electron configurations.

  • Chemical Bonding Blueprint: The arrangement of electrons, influenced by atomic structure, governs how atoms combine to form molecules, laying the groundwork for grasping chemical bonding.

  • Electron Configuration Impact: The configuration of electrons in atoms affects an element's reactivity, valence electrons, and bonding potential, making it a crucial concept in chemical interactions.

  • Quantum Mechanics Gateway: The atomic structure chapter introduces the fundamentals of quantum mechanics, which play a role in explaining electron behavior, energy levels, and electronic transitions.

  • Spectral Interpretation: A solid grasp of atomic structure aids in interpreting spectral lines, allowing for the identification of elements and their presence in various substances.

  • Stoichiometric Precision: Accurate atomic masses, stemming from atomic structure knowledge, are pivotal for precise stoichiometric calculations in chemical reactions.

  • Bridging Concept: The insights gained from atomic structure extend to other areas of chemistry, forming a bridge to topics like molecular geometry and spectroscopy.

  • Foundation for Advanced Concepts: Concepts learned in this chapter serve as a foundation for more intricate topics, enabling a deeper understanding of chemical phenomena.

  • Practical Significance: The knowledge of atomic structure finds practical application in predicting chemical behavior, explaining periodic trends, and making informed decisions in various chemical scenarios.

  • Holistic Chemical Understanding: Mastering the atomic structure chapter provides a holistic understanding of the fundamental principles that govern chemical interactions and reactions.

JEE Main 2025 Atomic Structure: Notes vs Formulas

JEE Main formulas are like the building blocks of success in the exam, and when combined with well-structured revision notes, they become an indispensable tool for comprehensive understanding. As you revise your JEE Main notes, incorporate the associated formulas. Understand the 'why' behind the formula by referring to the notes, then apply it to practice problems. This integration sharpens your understanding, reinforces memory, and develops problem-solving skills—critical aspects of excelling in JEE Main 2025. Download the Important JEE Main Chemistry Formula PDF for free from Vedantu’s website and score more in your JEE Main 2025 Examinations.

Check Other Important Links for JEE Main 2025 Atomic Structure 

Explore additional resources beyond JEE Main 2025 Atomic Structure notes. Check out these other useful links that provide access to learning materials, practice papers, mock tests, and valuable insights. Enhance your preparation, overcome difficulties, and welcome achievement with these resources designed specifically for JEE Main 2025.

Score Higher by Using Vedantu’s JEE Main Notes for Preparation

On your path to success in exams, rely on Vedantu’s JEE Main Notes as your trustworthy partners. These notes make difficult topics easier, help you understand better, and prepare you thoroughly. With Vedantu's help, you can confidently tackle exams and find success. EmbraceThe benefits of JEE Main Notes – download them now to boost your preparation and achieve better exam results. The journey to excellence begins here, with Vedantu’s JEE Main Notes. Download the Free NotesToday and grasp your success!

FAQs on JEE Main - Atomic Structure Notes (Free PDF Download)

1. What are the most important topics included in Atomic Structure Notes for JEE Main 2025?

The most important topics in Atomic Structure for JEE Main 2025 are the Bohr model, the quantum mechanical model, the wave nature of electrons, atomic spectra, and ionization energy. These topics are essential for understanding the structure and behavior of atoms, and they are also the most likely to be tested on in the exam.

2. What is the weightage of Atomic Structure Notes for JEE Main 2025?

Atomic Structure has a weightage of 6-8% in the JEE Main 2025 exam. This means there are typically 3-4 questions on this topic in the exam.

3. Which is the easiest JEE Main 2025 Atomic Structure Notes Topic?

The easiest topic in Atomic Structure for JEE Main 2025 is atomic spectra. This topic is relatively straightforward and does not require a deep understanding of the concepts of atomic structure.

4. What are the Atomic Structure in the context of JEE Main 2025?

Atomic Structure is a fundamental concept in chemistry, and it is important for understanding the properties of matter and the behavior of atoms. This makes it a valuable topic to study for the JEE Main 2025 exam.

5. How can I apply the Atomic Structure to solve JEE Main problems?

The concepts of Atomic Structure can be applied to solve problems related to atomic spectra, ionization energy, and other topics. For example, you can use the Bohr model to calculate the energy levels of electrons in an atom, and you can use the wave nature of electrons to explain the emission of light by atoms.

6. Are there any common mistakes students make in Atomic Structure problems?

Some common mistakes that students make in Atomic Structure problems include not understanding the concepts, making careless mistakes in calculations, and not applying the correct formulas. It is important to avoid these mistakes by practicing with problems and getting help from a tutor or mentor.

7. Are JEE Main 2025 Atomic Structure Notes recommended for last-minute revision?

The Atomic Structure Notes can be helpful for last-minute revision, but it is important to understand the concepts before you start revising. You should also practice solving problems to make sure that you can apply the concepts to real-world situations.

8. What are the expected difficulty level of JEE Main Atomic Structure questions?

The difficulty level of JEE Main Atomic Structure questions is moderate. This means that you need to have a good understanding of the concepts and be able to apply them to solve problems.