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Question

What is the lightest subatomic particle?


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Solution

Lightest subatomic particle.

  1. An electron, having mass 9.11×10-31kg, is the lightest elementary particle.
  2. An electron has almost no mass compared to protons and neutrons and acts like both a wave and a particle.
  3. An electron, alongside neutrons and protons, is one of the lightest subatomic particles and a key component of atoms.

Hence, the lightest subatomic particle is “Electron”.


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