C.
This is basically the definition of percent composition which is how much mass a element contributes to a specific molecule.
If he was the primary scientist doing it as he did alot of the heavy lifting then yes its ok, but i also think how the others should also me at least mentioned. Or they could just not name the experiment by a person just so its not too biased
Answer:
Elasticity or Flexibility
Explanation:
The ability of an object to resume its normal shape after being stretched or compressed is called elasticity
No, isotopes would have a different number of electrons
