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Formula Sheet

Structure of Atom — Formula Sheet

CBSE · Class 11 · Chemistry

12 formulas from Structure of Atom (CBSE Class 11 Chemistry) on one page, grouped by topic. Covers Quantum Numbers, Orbitals.

163 questions72 flashcards12 formulas & key relations5 concepts

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12 Entries · 5 Sections

Formulas and Key Relations

1. Discovery of Sub-Atomic Particles

e/m_e = 1.758820 × 10^11 C kg^-1

e = -1.602176 × 10^-19 C

m_e = 9.1094 × 10^-31 kg

2. Atomic Models

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3. Atomic Number, Mass Number, Isotopes and Isobars

Atomic number Z = number of protons = number of electrons in a neutral atom

Mass number A = number of protons + number of neutrons

Number of neutrons = A - Z

4. Electromagnetic Radiation and Planck’s Quantum Theory

c = vλ

E = hν

E = 6.626 × 10^-34 J s × ν

hν = hν0 + (1/2)m_e v^2

Key relations

Electromagnetic waves travel in vacuum at 3.0 × 10^8 m/s and obey c = vλ.

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Frequently Asked Questions

What are the important topics in Structure of Atom for CBSE Class 11 Chemistry?
Key topics in Structure of Atom include The electron is a negatively charged, Thomson proposed that the atom, Rutherford’s alpha, A revolving charged electron should lose. Study these first, then practise questions on each for Class 11 exams.
How many formulas are in Structure of Atom?
This sheet lists 12 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 163 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 CBSE Class 11 Chemistry Formula Sheet

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