Which development significantly helped chemists organize the many facts associated with the elements?

• A. The discovery of the electron
• B. The formulation of the law of conservation of mass
• C. The invention of the Bunsen burner
• D. The creation of the periodic table

Answer: (D)

Verified step by step guidance

1. Understand that the question asks about a development that helped chemists organize the many facts associated with the elements.
2. Recall that the discovery of the electron provided insight into atomic structure but did not directly organize elements.
3. Recognize that the law of conservation of mass is fundamental to chemical reactions but does not organize elements themselves.
4. Note that the invention of the Bunsen burner is a laboratory tool and does not relate to organizing elemental information.
5. Identify that the creation of the periodic table arranged elements based on their properties and atomic numbers, allowing chemists to systematically organize and predict element behavior.