Why do some particles have mass while others have none? – Cadmium Zone

Question: Why do some particles have mass while others have none?
- Keywords:
  force,
  molecule,
  physics,
  subtatomic
Asked by n3rdy to Gopal, Becky on 28 Jun 2013.
- Gopal Ramchurn answered on 28 Jun 2013:
  
  All particles have mass… but they can also be conceived to have a ‘wave’ property. It depends on what theory you prefer to use to explain things.

Comments

n3rdy commented on 28 Jun 2013:

Aren’t Photons (light particles) the only particles that don’t have a mass , which is why they travel at the speed of light..

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