Topic Details (Notes format)

Structure of Atom

Subject: General Science

Book: NCERT Chemistry Class 11

Atoms are the building blocks of matter.
- **Atomic Models**:
- Dalton’s Model (Indivisible atoms).
- Rutherford’s Model (Nucleus at center).
- Bohr’s Model (Energy levels).
- **Quantum Mechanical Model**:
- Describes electron behavior using quantum numbers.
- **Electron Configuration**:
- Electrons are arranged in shells and orbitals.

**Possible Exam Questions:**
1. Compare Bohr’s and Rutherford’s atomic models.
2. What are quantum numbers? Explain their significance.
3. Define electron configuration with an example.
4. What is the Heisenberg Uncertainty Principle?
5. How do orbitals differ from orbits?

Practice Questions

What type of bond is formed by sharing electrons between atoms?

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Which process describes the splitting of a nucleus into smaller nuclei?

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What is the unit of electrical resistance?

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Which gas is used in the process of welding?

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What is the primary source of energy for life on Earth?

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What is the most common state of matter in the universe?

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What type of energy is stored in a stretched rubber band?

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Which type of blood vessel carries blood away from the heart?

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Which process converts glucose into energy in the human body?

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What is the unit of frequency?

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