# NCERT Class 9 Science Chapter 8 Journey Inside the Atom Solutions: In-Text and Exercise Questions Explained | SwaVid

This page provides solutions to in-text and exercise questions from the CURRENT NEW NCERT Class 9 Science textbook, Chapter 8, 'Journey Inside the Atom'...

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# Journey Inside the Atom

## Find the gaps before this chapter finds them for you.

## Related chapters

Chapter 8 · Class 9 Science

This page provides solutions to in-text and exercise questions from the CURRENT NEW NCERT Class 9 Science textbook, Chapter 8, 'Journey Inside the Atom'. These solutions are designed to help students understand the fundamental concepts of atomic structure, subatomic particles, atomic models, electronic configuration, valency, isotopes, and isobars. Please note that while the concepts and typical questions are covered, the exact wording of the questions is an approximation based on common curriculum content for this chapter, as direct access to the specific new NCERT textbook's question phrasing is not available. The solutions aim to be accurate and comprehensive for the topics expected in this chapter.

Your study route

In-text Questions

Answer: Canal rays are streams of positively charged particles (positive ions) that move towards the cathode in a discharge tube. They were discovered by E. Goldstein and led to the discovery of the proton.

Exact question wording is an approximation based on common curriculum content for this chapter.

Exercise Questions

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Source

- Canal rays are positively charged radiations discovered by E. Goldstein in 1886.
- These rays were observed when a perforated cathode was used in a discharge tube and a low pressure was maintained.
- They consist of positively charged particles (protons or positive ions) that travel in a direction opposite to the cathode rays (electrons).
- NCERT Class 9 Science textbook: Exploration : Chapter 8: Journey Inside the Atom

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