Which of the following particles is the lightest? Electron, Proton, Neutron, None of these
Everyday Science / Chemistry — Multiple-choice practice
مندرجہ ذیل ذرات میں سب سے ہلکا کون سا ہے؟
- A. Proton
- B. Electron
- C. Neutron
- D. None of these
Correct answer
Electron
Explanation
Explanation Electron is a fundamental particle with much smaller mass than protons and neutrons . Proton and Neutron are roughly 1836 times heavier than an electron . Masses (approx.): Electron – 9.11×10⁻³¹ kg , Proton – 1.67×10⁻²⁷ kg, Neutron – 1.67×10⁻²⁷ kg. Last verified on 03-04-2026
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