• Question: What is the most common partical in the Universe as we know it? :D

    Asked by caleb99 to Andrew on 27 Jun 2013.
    • Photo: Andrew Swale

      Andrew Swale answered on 27 Jun 2013:

      There are three ‘common’ elementary particles in our Universe: –

      1. Up quark
      2. Down quark
      3. Electron

      An elementary particle is something that is made up of nothing else, just itself (for example an atom is made up of protons, neutrons and electrons)

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