One of the Main Features of Dalton's Atomic Theory No

Multiple Choice

One of the main features of Dalton's atomic theory no longer considered valid is: atoms cannot be created or destroyed.Which of the following is the best explanation of why this feature is no longer considered valid?

A) The percentage by mass of the elements in a compound is always the same
B) In a chemical change, mass is neither created or destroyed
C) Every atom contains an extremely small, extremely dense nucleus
D) When two elements combine to form more than one compound, the different weights of one element that combine with the same weight of the other element are in a simple ratio of whole numbers
E) The discovery of subatomic particles