PLS HELP ASAP!!!!!

Why can electrons move, but the protons can't?


Electrons are fixed in the nucleus.


Protons can easily move.


None of the above.


Protons are fixed in the nucleus.

Respuesta :

The answer is the fourth one.
Protons are fixed in the nucleus
The answer is:  [D]:  "Protons are fixed in the nucleus."
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