Multiple Choice
One of the features of Dalton's atomic theory no longer considered to be correct is: All atoms of each element are identical in every respect.Which of the following is the best explanation of why this feature is no longer considered valid?
A) The existence of isotopes
B) The existence of ions
C) Natural variation in the mass of the proton
D) Natural variation in the mass of the neutron
E) Natural variation in the masses of the proton and the neutron
Correct Answer:

Verified
Correct Answer:
Verified
Q6: The nuclear symbol of an isotope of
Q7: The chemical symbol of germanium is Ge.An
Q8: Which of the following is correct?<br>A)The element
Q9: Which of the following symbol/name pairs is/are
Q10: Isotopes of an element vary in mass
Q12: Which of the following is not a
Q13: Which of the following is the best
Q14: Calculate the atomic mass of the element
Q15: Consider the following generic picture of an
Q16: Which of the following masses is closest