Class 11 Structure of Atom Question Paper PDF
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Kendriya Vidyalaya
OCR
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Summary
This is a Class 11 chemistry question paper on the structure of the atom. It covers various topics like atomic orbitals, quantum numbers, electronic configuration, and models of the atom. The paper includes multiple-choice, short-answer, and longer answer questions.
Full Transcript
## Class 11 - Structure of Atom Question Paper ### Total Marks: 25 ### Time: 1 Hour ### Section A: One Mark Questions (5 Marks) 1. Define an atomic orbital. 2. What is the significance of the principal quantum number? 3. State the Pauli Exclusion Principle. 4. What is the shape of an s orbital? 5...
## Class 11 - Structure of Atom Question Paper ### Total Marks: 25 ### Time: 1 Hour ### Section A: One Mark Questions (5 Marks) 1. Define an atomic orbital. 2. What is the significance of the principal quantum number? 3. State the Pauli Exclusion Principle. 4. What is the shape of an s orbital? 5. How many electrons can a p subshell hold? ### Section B: Two Mark Questions (8 Marks) 1. Write the electronic configuration of an element with atomic number 20. 2. Explain the concept of angular momentum quantum number. 3. Describe the difference between an atom and an ion. 4. What are isotopes? Give one example. ### Section C: Three Mark Questions (12 Marks) 1. Discuss the significance of quantum numbers in describing electron positions in an atom. 2. Calculate the maximum number of electrons in the n=3 shell and explain the reasoning behind your answer. 3. Explain the Rutherford gold foil experiment and its implications for the model of the atom. 4. Describe Bohr's model of the hydrogen atom and how it explains the line spectrum of hydrogen.
