I have to summarize the development of atomic theory. I think this question is talking about Dalton's atomic theory, is that right

Dalton's Atomic Theory was based on experimental evidence which lead to the laws of definite and multiple proportions. You may want to research that and other experimental evidence that supports the atomic theory. You will find a lot more about the development of the atomic theory from ancient times through the discovery of the parts of the atom here:

http://www.infoplease.com/ce6/sci/A0856763.html

Yes, you are correct. The question is referring to Dalton's atomic theory, which is a key historical development in the field of atomic theory. Dalton's atomic theory was proposed by John Dalton in the early 19th century and laid the foundation for our modern understanding of atoms and their properties.

To summarize the development of atomic theory, you can include the key points of Dalton's atomic theory and briefly mention any other significant contributions that led to the further development of atomic theory. Here is a step-by-step guide on how to summarize the development of atomic theory:

1. Begin with a brief introduction to the concept of atomic theory and its importance in understanding the fundamental building blocks of matter.

2. Start by discussing the contributions of John Dalton and his atomic theory. Dalton's atomic theory proposed the following key points:
- Matter is composed of indivisible particles called atoms.
- Atoms of an element are identical in size, mass, and other properties.
- Atoms of different elements are different in size, mass, and other properties.
- Atoms combine in fixed ratios to form compounds.
- Chemical reactions involve the rearrangement of atoms; atoms are neither created nor destroyed in chemical reactions.

3. Next, mention any significant experiments or discoveries that supported Dalton's atomic theory. For example, Antoine Lavoisier's law of conservation of mass and Joseph Proust's law of definite proportions provided experimental evidence for the concepts proposed by Dalton.

4. Discuss the developments that followed Dalton's atomic theory, such as the discovery of subatomic particles like electrons, protons, and neutrons. Mention notable scientists like J.J. Thomson, Ernest Rutherford, and James Chadwick, who made significant contributions to further understanding the structure of the atom.

5. Conclude by emphasizing the cumulative nature of scientific knowledge and how subsequent discoveries and advancements built upon Dalton's atomic theory to form our modern understanding of atoms and subatomic particles.

Remember, while summarizing the development of atomic theory, it is important to provide a concise overview and focus on the key points and contributions that were pivotal in shaping our current understanding of atoms.