Doubt from AskPhysics.com
I have heard the following statements->
1. Quarks always exist in a group of 2 or 3, and can not stand alone.
2. Protons are made up of 2 up quarks, and 1 down quark.
3. Quantum mechanics allows us to entangle a particle by somehow dividing it into 2(For example, if a proton’s energy is 5 joules, if we split into 2 then sum of both splitted particles will have energy sum of 5 joules.)
Aren’t the statements contradicting each other? Please tell me correct if anyone of my statement is incorrect. Thank You!
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