In science it is best to continue research, and rinse and repeat. This allows for a stronger hypothesis if you're results are the same every time, or change your hypothesis if you stumble upon new results. <span />
C. the number of protons and neutrons an element has in its nucleus
Explanation:
ooohhhh it's free points,,,thank you mwahhh hahahahahaha jokeee
sorry I don't have any ideas