Question

Which of Dalton's postulates about atoms are inconsistent with later observations? Do these inconsistencies mean that Dalton was wrong? Is Dalton’s model still useful? Explains

Answer 1

It’s the fact that he said atoms are indivisible spheres what pauses limitations on his postulates. Later it was proven that atoms contain subatomic particles: electrons (proved by Thompson), protons (by Goldstein) and neutrons ( by Chadwick). However, he was right about the fact that atoms are tiny and spherical!