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Class 9 Chemistry Chapter 2 Notes
| Post Topic | Long Questions |
| Book Code | Chemistry |
| Class | 9th Class |
| Chapter/Full | Chapter 2 |
| Board | Punjab Board |
9th Class Chemistry Chapter 2 Structure of Atoms Long Questions Notes
- How are cathode rays produced? What are its five major characteristics?
- How was it proved that electrons are fundamental particles of an atom?
- Draw a labeled diagram to show the presence of protons in the discharge tube and explain how canal rays were produced.
- How Rutherford discovered that an atom has a nucleus located at the center of the atom?
- One of the postulates of Bohr’s atomic model is that the angular momentum of a moving electron is quantized. Explain its meaning and calculate the angular momentum of the third orbit (i.e. n=3)
- How did Bohr prove that an atom must exist?
- What do you mean by electronic configuration? What are the basic requirements while writing the electronic configuration of an element (atom)?
- Describe the electronic configuration of Na, Mg, and Al ions. Do they have the same number of electrons in the outermost shell?
- Give the applications of isotopes in the field of radiotherapy and medicines.
- What is an isotope? Describe the isotopes of hydrogen with diagrams.
Chemistry Chapter 2 Long Questions PDF Download
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