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

question 48

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

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