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The ratio of velocity of the electron in the third and fifth orbit of Li$^{2+}$ would be:

December 20, 2025
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Atomic StructureLimitations of Rutherford model, Coulomb's law basics, Bohr model derivationsEASYJEE Chemistry
The ratio of velocity of the electron in the third and fifth orbit of Li$^{2+}$ would be: **Options:** - **A.** 3 : 5 - **B.** 5 : 3 - **C.** 25 : 9 - **D.** 9 : 25 --- **Difficulty:** EASY | **Chapter:** Atomic Structure | **Topic:** Limitations of Rutherford model, Coulomb's law basics, Bohr model derivations

Official Solution

## ✅ Correct Answer: **B** ### 📖 Detailed Explanation: **Solution:** **Analyzing each option:** (A) ✗ 3 : 5... (B) ✓ 5 : 3... (C) ✗ 25 : 9... (D) ✗ 9 : 25... **Correct Answer: (B)** **Key Concept:** Apply fundamental principles of atomic structure to identify the correct option. --- *This is an official solution provided by Chem Mantra. For more chemistry questions and solutions, explore our [question bank](/courses).*

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Atomic StructureLimitations of Rutherford model, Coulomb's law basics, Bohr model derivationsEASYJEE Chemistry