Question

compare and contrast the difference between dalton's atomic theory and modern atomic theory?

Answer 1

According to the Dalton's atomic theory the atoms are invisible and indestructible. Atom is the smallest unit of an element. In atoms of a same element are identical in every aspect. 

While in Modern atomic theory, atoms are divisible and destructible. Atom is not the smallest unit, it can be further divided down. Atoms of same elements can vary as the isotopes are the atoms of same element which are different. 

Answer 2

Answer:

• Dalton's atomic theory is a theory about indivisible particles called atoms, which are the smallest particles of all matter.
• The modern atomic theory is the theory that explains the full detailed structure of an atom.
• According to Dalton's atomic theory, atoms are indivisible particles.
• According to Modern atomic theory, atoms are divisible into subatomic particles such as protons, neutrons and electrons.
• According to Dalton's atomic theory, Atoms can neither be created nor destroyed.
• According to Modern atomic theory, Atoms can be created and destroyed by nuclear fusion and fission.
• According to Dalton's atomic theory, Atoms of one element are equal in all respects and differ from atoms of other elements.
• According to Modern atomic theory,  Atoms of an element may not be the same in all respects, as  in the case of isotopes. Isotopes  are atoms of the same element that have the same atomic number but different mass numbers.

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