Cars and bike yesyesyesyesyeyseyeyeyeyey
I believe that the answer is A, continental-continental.
I believe the answer would be Neutrons
Adding or removing neutrons from the nucleus are how isotopes are created. Protons carry a positive electrical charge and they alone determine the charge of the nucleus. Adding or removing protons from the nucleus changes the charge of the nucleus and changes that atom's atomic number.
