Question

a isotypes b ions c protons d electrons m neutrons n daltons theory did not discuss any of these topics. which of the following did dalton discuss in his atomic theory?

Explanation:

Dalton's atomic theory, proposed in the early 19th century, was a foundational concept in chemistry. It stated that atoms are indivisible and indestructible building blocks of matter. However, at that time, the existence of sub - atomic particles like electrons (discovered later by J.J. Thomson), neutrons (discovered by James Chadwick), and the concept of isotopes (which came with the understanding of atomic structure beyond Dalton's simple atoms) were unknown. Dalton did discuss atoms in general terms related to elements and compounds but did not have knowledge of these more refined sub - atomic or isotopic concepts.

Answer:

A. Isotopes, B. Ions, C. Protons, D. Electrons, E. Neutrons.