Question

what is the difference between the Dalton's atomic theory and Modern atomic theory
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Answer 1

Answer:

Dalton's says atoms of different elements differ in size and mass, whereas the modern theory says they differ in average mass. Dalton's says atoms are individual particles, whereas the modern theory says atoms are divisible into subatomic particles like protons, neutrons, and electrons..

Answer 2

Following are the basic differences between Dalton's atomic theory and Modern atomic theory:

• Divisibility: Dalton's atomic theory says atoms are indivisible and thus calls them the smallest particle in a matter while in contrast, the modern atomic theory says that the atoms can further be divided into subatomic particles.
• Isotopes: Dalton's atomic theory clearly states that all the atoms of the same element are identical while modern atomic theory explains the concept of isotopes in its theory. The isotopes of a chemical element are a group of atoms of that have the same atomic numbers but different mass numbers.
• Electrons: Dalton wasn't able to give the details about electrons while the Modern atomic theory clearly stated their location, reaction, and behavior.
• Chemical Reactions: Dalton's theory explains that the atoms are the smallest particles that can be involved in chemical reactions while modern atomic theory stated that the subatomic particles are the smallest ones to participate in chemical reactions.

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