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The increasing order (lowest first) for the magnitude of e/m (charge/mass) for electron (e), proton (p), neutron (n) and alpha particle () is

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Atomic StructureIntro, Dalton's theory, discharge tube & oil drop experiments, Rutherford scatteringEASYJEE Chemistry
The increasing order (lowest first) for the magnitude of e/m (charge/mass) for electron (e), proton (p), neutron (n) and alpha particle () is **Options:** - **A.** e,p,n, - **B.** n,p,e, - **C.** n,p,,e - **D.** n,,p,e, --- **Difficulty:** EASY | **Chapter:** Atomic Structure | **Topic:** Intro, Dalton's theory, discharge tube & oil drop experiments, Rutherford scattering

Official Solution

## ✅ Correct Answer: **D** ### 📖 Detailed Explanation: **Solution:** **Analyzing each option:** (A) ✗ e,p,n,... (B) ✗ n,p,e,... (C) ✗ n,p,,e... (D) ✓ n,,p,e,... **Correct Answer: (D)** **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 StructureIntro, Dalton's theory, discharge tube & oil drop experiments, Rutherford scatteringEASYJEE Chemistry