Which part of daltons atomic theory are known to be incorrect?

Dalton's atomic theory stated that atoms of a given element are identical in all respects, which we now know is incorrect as atoms can exist as isotopes with different numbers of neutrons. Additionally, atoms were thought to be indivisible, but we now know they can be broken down into subatomic particles like protons, neutrons, and electrons.

How can an stm help improve daltons theory?

An STM (scanning tunneling microscope) can help improve Dalton's atomic theory by providing visual evidence of individual atoms and their arrangements on surfaces. This experimental data can offer insights into the precise structure and behavior of atoms, supporting or refining Dalton's ideas based on empirical observation. Additionally, STM allows for the direct observation of atomic interactions and bonding, which can lead to a deeper understanding of atomic behavior beyond what Dalton's theory originally proposed.

Did daltons atomic theory include the idea that all atoms of all elements are the same size?

No, Dalton's atomic theory did not include the idea that all atoms of all elements are the same size. Instead, he proposed that atoms of different elements have different sizes and weights.

If all four postulates of Daltons atomic theory are correct what would change about the boxes on the periodic table and Why?

If all four postulates of Dalton's atomic theory were correct, the boxes on the periodic table would not change. Dalton's theory helped establish the concept of elements as composed of atoms, leading to the organization of elements on the periodic table based on their atomic number and properties. The periodic table would still be structured according to the number of protons in the nucleus of each element's atom.

What was one main point if daltons atomic theory?

One main point of Dalton's atomic theory was that all matter is made up of tiny, indivisible particles called atoms. He also proposed that atoms of the same element are identical in size, mass, and other properties, while atoms of different elements have different sizes and weights.