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Concept Maps

Structure of Atom — Concept Maps

NIOS · Class 12 · Physics

4 concept maps of Structure of Atom for NIOS Class 12 Physics, each also written out as a text outline. Part of the NIOS Class 12 Physics syllabus.

43 questions36 flashcards8 formulas & key relations5 concepts

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An illustration of J.J. Thomson's atomic model, depicting a sphere of uniformly distributed positive charge with negatively charged electrons (like plums) embedded within it.
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One of 6 illustrations for Structure of Atom in Super Tutor — alongside flashcards, concept maps and practice questions.

4 Concept Maps

Timeline showing the chronological development of atomic models from Dalton to Bohr

Timeline showing the chronological development of atomic models from Dalton to Bohr

The map in words

  • 1808
    • Dalton's Indivisible Atom
  • 1897
    • Thomson's Plum Pudding
  • 1911
    • Rutherford's Nuclear Model
  • 1913
    • Bohr's Quantum Model

Logic flow showing how Thomson's discovery led to the plum pudding model

Logic flow showing how Thomson's discovery led to the plum pudding model

The map in words

  • Electron Discovery
    • Electrons are Negative
      • Atom Must Have Positive Charge
        • Plum Pudding Model
          • Electrons in Positive Sphere

Decision tree showing how alpha particle path depends on distance from nucleus

Decision tree showing how alpha particle path depends on distance from nucleus

The map in words

  • Alpha Particles Bombard Gold Foil
    • Distance from Nucleus?
      • Far: Small/No Deflection
        • Nucleus Must Be Dense
      • Near: Large Angle Deflection
      • Head-on: 180 Degree Scattering

Structure of Atom

Structure of Atom

The map in words

  • Structure of Atom
    • Thomson's Plum Pudding Model
    • Rutherford's Scattering Experiment
    • Rutherford's Nuclear Model
    • Shortcomings of Rutherford Model
    • Bohr's Model of Hydrogen Atom
    • Bohr's Postulates
    • Bohr's Orbit Calculations
    • Hydrogen Spectrum

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Frequently Asked Questions

What are the important topics in Structure of Atom for NIOS Class 12 Physics?
Key topics in Structure of Atom include Historical Development of Atomic Models, Rutherford's Alpha Particle Scattering Experiment, Rutherford's Nuclear Model and Its Limitations, Bohr's Model of Hydrogen Atom. Study these first, then practise questions on each for the NIOS Class 12 board exam.
What do the concept maps for Structure of Atom show?
The 4 maps show how the ideas in Structure of Atom connect: Timeline showing the chronological development of atomic models from Dalton to Bohr; Logic flow showing how Thomson's discovery led to the plum pudding model. Each map is also written out as an outline on this page.
How should I revise Structure of Atom for the NIOS Class 12 board exam?
Learn the core ideas first, then work through the 43 practice questions on Structure of Atom. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Structure of Atom

All NIOS Class 12 Physics Concept Maps

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