Write four !modification of John Dalton atomic theory
1. Modification of the Law of Conservation of Mass:
Instead of stating that mass is conserved in chemical reactions, the modified theory can propose that while mass may be conserved overall, there could be small variations in mass due to the presence of isotopes or the release/absorption of energy.
2. Modification of the Indivisibility of Atoms:
Although Dalton's theory stated that atoms are indivisible, the modified theory can include the existence of subatomic particles such as protons, neutrons, and electrons, which can further explain the structure and behavior of atoms.
3. Modification of the Definite Proportions:
While Dalton's theory suggested that chemical compounds are formed by atoms combining in whole number ratios, the modified theory can recognize that some compounds may have fractional or variable ratios due to the presence of mixed valence states or partial ions.
4. Modification of the Billiard Ball Model:
Instead of considering atoms as solid, indestructible billiard ball-like structures, the modified theory can propose that atoms have a more complex internal structure composed of a nucleus (containing protons and neutrons) surrounded by electron clouds or energy levels, taking into account the discoveries of quantum mechanics.