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Formula Sheet

Atoms and Molecules

NIOS · Class 10 · Science & Tech

All formulas from Atoms and Molecules in NIOS Class 10 Science & Tech. Key equations, constants, and identities for board exam preparation.

93 questions42 flashcards5 concepts

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An infographic comparing the ancient Indian (Maharishi Kanad, Pakudha Katyayan) and Greek (Democritus, Leucippus) philosophical ideas about the divisibility of matter and the concept of 'Parmanu' and
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2 Formulas · 1 Sections

Formulas

4. Atom, atomic mass and isotopes

Total mass of the nucleus = mass of protons + mass of neutrons

Average atomic mass = (35 x 3 + 37 x 1) / 4 = 142 / 4 = 35.5 u

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Frequently Asked Questions

What are the important topics in Atoms and Molecules for NIOS Class 10 Science & Tech?
Key topics in Atoms and Molecules include Atoms and Molecules Concept Map, Atoms and Molecules - Chapter Overview, Atoms and Molecules - Complete Chapter Overview. These are the concepts NIOS Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Atoms and Molecules — NIOS Class 10 Science & Tech?
Understand the core concepts first, then work through the 93 practice questions available for this chapter. Revise formulas and 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.

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