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Formula Sheet

Structure of Atom — Formula Sheet

Punjab Board · Class 11 · Chemistry

2 formulas from Structure of Atom (Punjab Board Class 11 Chemistry) on one page, grouped by topic. Includes Hydrogen spectrum.

45 questions34 flashcards2 formulas & key relations5 concepts

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A labeled diagram illustrating J.J. Thomson's cathode ray tube experiment, showing the generation of cathode rays, their deflection by electric and magnetic fields, and how this led to the discovery o
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2 Entries · 2 Sections

Formulas and Key Relations

Electromagnetic Radiation and Planck's Quantum Theory

EM radiation travels through vacuum at speed of light c = 3.0 × 10⁸ m/s.

Atomic Spectra and Bohr's Model of Hydrogen Atom

Hydrogen spectrum

Balmer series (visible, n₁=2, n₂=3,4,5...), Lyman (UV, n₁=1), Paschen (IR, n₁=3), Brackett (IR, n₁=4), Pfund (IR, n₁=5).

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Frequently Asked Questions

What are the important topics in Structure of Atom for Punjab Board Class 11 Chemistry?
Key topics in Structure of Atom include Discovery of Sub-Atomic Particles, Atomic Models – Thomson, Rutherford, and Their Drawbacks, Electromagnetic Radiation and Planck's Quantum Theory, Atomic Spectra and Bohr's Model of Hydrogen Atom. Study these first, then practise questions on each for Class 11 exams.
How many formulas are in Structure of Atom?
This sheet lists 2 formulas from Structure of Atom, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Structure of Atom for Class 11 exams?
Learn the core ideas first, then work through the 45 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 Punjab Board Class 11 Chemistry Formula Sheet

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