what were the drawbacks of Daltons atomic theory?
Dear Student,
Drawbacks of Dalton's Atomic Theory:
- The atom is further subdivided into protons, neutrons and electrons.
- The atoms of same elements are not similar in all respect. They may vary in mass and density. These are known as isotopes. For example: chlorine has two isotopes having mass numbers 35 a.m.u and 37 a.m.u.
- Atoms of different elements are not different in all respects. Atoms of different elements that have the same atomic mass are called isobar.
- According to Dalton atoms of different elements combine in simple whole number ratio to form compounds. This is not seen in complex organic compounds like sugar C12H22O11.
- The theory fails to explain the existence of allotropes.
Hope it is clear to you.
Cheers!