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Formula Sheet

Radioactivity — Formula Sheet

ICSE · Class 10 · Physics

9 formulas from Radioactivity (ICSE Class 10 Physics) on one page, grouped by topic. Part of the ICSE Class 10 Physics syllabus.

42 questions35 flashcards9 formulas & key relations5 concepts

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A diagram illustrating the nuclear fusion process, where two light nuclei combine under extreme conditions to form a heavier, more stable nucleus, releasing a large amount of energy.
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9 Entries · 3 Sections

Formulas and Key Relations

Structure of Atom and Nucleus

Number of neutrons = A - Z

Atomic symbol = X_Z^A

Nucleus size = 10^-15 m to 10^-14 m

Isotopes, Isobars and Isotones

Isotopes: same Z, different A

Isobars: same A, different Z

Isotones: same number of neutrons

Alpha, Beta and Gamma Radiations

Alpha decay: X_Z^A → Y_Z-2^A-4 + He_2^4

Beta decay: X_Z^A → Y_Z+1^A + e_-1^0

Gamma emission: no change in A or Z

Full sheet with units and worked examples

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Frequently Asked Questions

What are the important topics in Radioactivity for ICSE Class 10 Physics?
Key topics in Radioactivity include Structure of Atom and Nucleus, Isotopes, Isobars and Isotones, Discovery and Nature of Radioactivity, Alpha, Beta and Gamma Radiations. Study these first, then practise questions on each for the ICSE Class 10 board exam.
How many formulas are in Radioactivity?
This sheet lists 9 formulas from Radioactivity, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Radioactivity for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 42 practice questions on Radioactivity. 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 Radioactivity

All ICSE Class 10 Physics Formula Sheet

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