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Chemistry Atomic Structure Mock Test 2 for NEET Students

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NEET Chemistry Atomic Structure Mock Test 2: Important MCQs and Concepts

Mock Test: 20 Questions – 20 Minutes
Prepare yourself for NEET with 20 challenging questions from Chemistry – Atomic Structure. You have exactly 20 minutes to complete this test. Each correct answer carries 4 marks and each wrong answer carries -1 mark (NEET marking scheme). Ready to begin?

Time Left: 20:00

Q1. Which postulate of Dalton’s atomic theory is contradicted by the existence of isotopes?

Q2. The number of neutrons present in 40Ca is:

Q3. What does the principal quantum number (n) primarily determine?

Q4. Which series of hydrogen atomic spectrum falls in the visible region?

Q5. The value of Planck's constant is:

Q6. The maximum number of electrons present in a subshell is given by:

Q7. What is the azimuthal quantum number for a d orbital?

Q8. The number of nodal planes in a p orbital is:

Q9. Which concept explains why no two electrons in an atom can have the same set of all four quantum numbers?

Q10. In Bohr's model, the angular momentum of an electron is quantized and is given by:

Q11. Which property is not quantized in classical mechanics but is quantized according to Bohr’s model?

Q12. Which quantum number refers to the spin of the electron?

Q13. Which of the following directly determines the number of radial nodes in an orbital?

Q14. Which is the correct order for filling electrons according to the Aufbau principle?

Q15. The number of orbitals in the third shell (n=3) is:

Q16. In which of the following pairs do both species have the same number of electrons?

Q17. According to the uncertainty principle, which pairs of quantities cannot be known simultaneously with high precision?

Q18. Which of the following is isoelectronic with N3–?

Q19. Which quantum number describes the shape of orbital?

Q20. Which figure best represents the shape of a p orbital?

Congratulations! You answered all questions correctly!

What is the Chemistry Atomic Structure Mock Test for NEET?

The Chemistry Atomic Structure Mock Test is a specialized practice test designed to sharpen your knowledge of atomic structure, one of the foundational chapters in NEET Chemistry. This section of Chemistry focuses on the fundamental concepts of atoms, quantum numbers, electronic configurations, and atomic models.


Practicing with this mock test helps NEET aspirants strengthen their grasp on core atomic concepts, solve exam-style MCQs, and face the NEET Chemistry section with confidence. Atomic Structure carries significant weightage in the Chemistry section of NEET 2026.


How Chemistry Atomic Structure Mock Tests Help NEET Aspirants

Mock tests on Chemistry’s Atomic Structure help you revise key principles such as quantum numbers, electronic configuration, and atomic theories at the NEET exam level. Regular practice leads to improved accuracy and better concept recall in the actual exam.


By simulating the real NEET marking pattern, these mock tests improve your time management and question-solving speed. After submission, instant answers and feedback guide you to focus on weak areas while revising. For further NEET Chemistry guidance, check our NEET course page.


Chemistry Atomic Structure Topic-wise Mock Test Coverage

SubjectTopics CoveredNo. of Questions
Chemistry Dalton’s Atomic Theory, Discovery of Subatomic Particles 4
Chemistry Atomic Models (Thomson, Rutherford, Bohr) 4
Chemistry Quantum Numbers & Electrons in Atoms 5
Chemistry Atomic Spectrum, Electronic Configuration 4
Chemistry Aufbau Principle, Pauli Principle, Hund’s Rule 3

How to Take the Chemistry Atomic Structure NEET Mock Test

Taking this mock test is easy: just open this page and click the “Start the Mock Test” button to begin. Answer all 20 multiple-choice questions on the screen and submit when done, or let the timer auto-submit when time runs out. Your score and correct answers are revealed instantly.


You can review your performance and retry the test as many times as you wish. This format aligns perfectly with the NEET exam pattern, making it ideal for efficient revision and practice.


Why Choose Vedantu's Chemistry Atomic Structure NEET Mock Test?

Vedantu’s Chemistry Atomic Structure NEET Mock Test mirrors the latest NEET exam pattern and strictly follows NCERT class 11 and 12 syllabi. All questions are carefully curated to reflect actual exam difficulty and ensure you are well-prepared.


The test provides instant scoring, detailed solution highlights, and proper NEET-style negative marking. Use our analysis to identify strengths, fix mistakes, and maximize your NEET Chemistry score.


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FAQs on Chemistry Atomic Structure Mock Test 2 for NEET Students

1. What is a mock test on chemistry atomic structure?

A mock test on chemistry atomic structure is a practice exam designed to assess a student's understanding of atomic models, quantum numbers, and related NEET Chemistry topics.

- Simulates real exam questions on atomic structure
- Covers concepts like electron configuration, protons, neutrons, and atomic models
- Helps assess your preparation and boost confidence
- Useful for NEET and board exam practice

2. How can I prepare for NEET atomic structure essay questions?

To prepare for NEET atomic structure essay questions, focus on understanding fundamental concepts and practicing structured writing.

- Study basic atomic theory and models (Dalton, Rutherford, Bohr)
- Revise key terms like electrons, protons, neutrons, quantum numbers
- Use sample essays for structure and style guidance
- Highlight importance, applications, and recent advances
- Time your practice essays under exam conditions

3. What are the key points to cover in an atomic structure speech?

A strong atomic structure speech includes definition, key facts, and significance.

- Define atomic structure (protons, neutrons, electrons)
- Briefly explain Rutherford and Bohr models
- Mention quantum numbers and electronic configuration
- State relevance in modern chemistry and NEET
- Conclude with real-life applications and why this topic matters

4. How many marks do atomic structure questions carry in NEET?

In NEET Chemistry, atomic structure questions typically hold 8–12 marks each year.

- Weightage can vary based on the year
- Questions may be factual, numerical, or application-based
- Cover topics: atomic models, quantum numbers, subatomic particles
- Regular mock test practice helps maximize your score

5. Where can I find sample essays on atomic structure for students?

You can access sample essays on atomic structure for students:

- On NEET and school revision portals
- Through educational websites, NCERT and class notes
- This page offers 150, 250, and 500-word essay samples and outlines
- Check official board resources and reputed Chemistry learning apps

6. Why is practicing mock tests important for Chemistry?

Practicing mock tests is crucial for mastering Chemistry concepts and exam strategies.

- Builds confidence and familiarizes you with the exam format
- Identifies strengths and improvement areas in atomic structure
- Enhances speed, accuracy, and time management
- Reduces exam stress and motivates revision
- Mirrors real NEET conditions for better results

7. What is atomic structure in chemistry for NEET?

Atomic structure in chemistry refers to the arrangement of protons, neutrons, and electrons inside an atom.

- Includes atomic models, electronic configuration, and quantum numbers
- Explains properties, reactivity, and behavior of elements
- Is a key chapter for NEET Chemistry preparation

8. How do you write an essay on atomic structure?

To write an effective essay on atomic structure:

- Start with a definition and short introduction
- Describe major atomic models and theories (Dalton, Rutherford, Bohr)
- Explain key facts: subatomic particles, quantum numbers
- Include applications in Chemistry and real life
- Conclude with importance for NEET and exams

9. What are key facts about atomic structure?

Some important atomic structure facts for students:

- An atom has protons (positive), neutrons (neutral), and electrons (negative charge)
- Rutherford discovered the nucleus; Bohr showed energy levels
- Electrons are arranged in shells by quantum numbers
- Atomic number = number of protons
- Forms the basis of periodic table and chemical properties

10. What is the best way to revise atomic structure for NEET?

The best way to revise atomic structure for NEET is consistent practice and smart note-making.

- Create summary notes of atomic models, key definitions, and facts
- Attempt mock tests and sample papers regularly
- Use flashcards for quantum numbers and scientist discoveries
- Review mistakes and clarify doubts timely
- Practice essay and speech writing for better recall