Identify the choice that best completes the statement or answers the question about atoms and early atomic theory.

Understand the Problem

The question seems to be focused on fundamental principles of atomic theory and conservation of mass, with multiple choice options designed to assess understanding of these concepts.

More Information

This document assesses understanding of early atomic theory concepts, including Dalton's atomic theory, the law of multiple proportions, and the law of definite proportions.

Tips

A common mistake is confusing the laws of definite proportions and multiple proportions. The law of definite proportions states that a chemical compound contains exactly the same proportion of elements by mass, while the law of multiple proportions applies to different compounds made of the same elements.

Sources

• Practice Atomic Theory Questions - Macmillan Learning - macmillanlearning.com
• Atomic Theory and Structure Test - KEY | PDF - Scribd - scribd.com
• The Atom and Half Lives - bhsneill.weebly.com