NCERT Solutions Class 9 Maths Chapter 4 Structure Of The Atom – Here are all the NCERT solutions for Class 9 Maths Chapter 4. This solution contains questions, answers, images, explanations of the complete Chapter 4 titled The Fun They Had of Maths taught in class 9. If you are a student of class 9 who is using NCERT Textbook to study Maths, then you must come across Chapter 4 Structure Of The Atom. After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 9 Maths Chapter 4 Structure Of The Atom in one place.
NCERT Solutions Class 9 Science Chapter 4 Structure Of The Atom
Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Science for Class 9 so that you can refer them as and when required. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.
For a better understanding of this chapter, you should also see summary of Chapter 4 Structure Of The Atom , Science, Class 9.
Class | 9 |
Subject | Science |
Book | Science |
Chapter Number | 4 |
Chapter Name |
Structure Of The Atom |
NCERT Solutions Class 9 Science chapter 4 Structure Of The Atom
Class 9, Science chapter 4, Structure Of The Atom solutions are given below in PDF format. You can view them online or download PDF file for future use.
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Download NCERT Solutions Class 9 Science chapter 4 Structure Of The Atom In PDF Format
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Question & Answer
Q.1: What are canal rays?
Ans : Canal rays are positively charged radiations. These rays consist of positively charged particles known as protons. They were discovered by Goldstein in 1886.
Q.2: If an atom contains one electron and one proton, will it carry any charge or not?
Ans : An electron is a negatively charged particle, whereas a proton is a positively charged particle. The magnitude of their charges is equal. Therefore, an atom containing one electron and one proton will not carry any charge. Thus, it will be a neutral atom.
Q.3: On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole.
Ans : According to Thomson's model of the atom, an atom consists of both negatively and positively charged particles. The negatively charged particles are embedded in the positively charged sphere. These negative and positive charges are equal in magnitude. Thus, by counterbalancing each other's effect, they make an atom neutral.
Q.4: On the basis of Rutherford’s model of an atom, which subatomic particle is present in the nucleus of an atom?
Ans : On the basis of Rutherford's model of an atom, protons (positively-charged particles) are present in the nucleus of an atom.
Q.5: Draw a sketch of Bohr’s model of an atom with three shells.
Ans : Draw a sketch of Bohr's model of an atom with three shells.
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All NCERT Solutions Class 9
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