4. Structure of The Atom-page 5 Science Class 9 In English-CBSE Notes
Explore science cbse notes for Class 9 Chapter 4. Structure of The Atom Topic page 5 in English medium for exams preparation.
4. Structure of The Atom-page 5 Science Class 9 In English-CBSE Notes
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All Topics Chapter 4. Structure of The Atom
- 1. Non-atomic particles
- 2. Model of An Atom
- 3. Electronic Configuration And valency
- 4. Isotopes And Isobar
- 5. page 5
Notes
4. Structure of The Atom-page 5 Science Class 9 In English-CBSE Notes
4. Structure of The Atom
page 5
Lesson - 4
Q1. Maximum, how many electrons are held in N orbit of an atom?
Ans: 32 electrons.
Q2. What is the source of Alpha particles of Rutherford experiment?
Ans: Double charged Helium particle.
Q3. Name the non-atomic particle which does not take part in atomic mass.
Ans: Electrons.
Q4. Name the positive charged atomic particles which presence in nucleus.
Ans: Protons.
Q5. Copper has atomic number 29. Then what is its valency?
Ans: 1
Q6. Give the example of isobar?
Ans: Calcium, Argon
Q7. Name the scientist who proposed that the atom is as chrismas cake.
Ans: J. Thomson.
Q8. Name the scientist who discovered protons.
Ans: E Gold Steen.
Q9.
Q10. Name the isotope of hydrogen which has 2 atomic mass number.
Ans: Deuterium
Q11. Name the non-atomic particle which takes part in atomic mass and having no charge.
Ans: Neutron
Q12. Name the isotope of element which is used in treatment of goiter. – Iodine
Q13. Name the scientist who discovered the nucleus.
Ans: Rutherford
Q14.
Q15. Name the scientist who discovered the neutron.
Ans: J. Chadwick
Q16. Name the isotopes of element which is used in atomic reacter as fuel.
Ans: Uranium
All Topics Chapter 4. Structure of The Atom
4. Structure of The Atom-page 5 Science Class 9 In English-CBSE Notes
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CBSE Notes for Class 9 science Chapter 4. Structure of The Atom – page 5
The CBSE Notes for Class 9 science Chapter 4. Structure of The Atom – page 5 are prepared to help students understand every concept in a simple, clear, and well-organized manner. These notes are based on the latest CBSE syllabus and are suitable for regular classroom learning, homework, revision, and examination preparation. Every topic is explained using easy language so that students can learn important concepts without difficulty and develop a strong academic foundation.
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