What are the defects of Dalton’s atomic theory?
Defects of Dalton’s atomic theory:
Series of experiments that were performed in 1850’s and beginning of twentieth century clearly demonstrated that atoms is divisible and consists of subatomic particles, electrons, protons and neutrons. Also, the atoms of an element may differ in masses (such atoms are called isotopes). Thus, some of the postulates of Dalton’s atomic theory were found defective and were changed.