Question

in what way occurrence of isobars contradicts
Dalton atomic theory?​

Answer 1

Isobars are atoms of different elements having same mass number . Which contradicts the following postulate of Dalton's Theory: "Atoms of same elements are identical that is similar in mass and shape.

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Answer 2

Answer:

Isobars are atoms of different elements having same mass number . Which contradicts the following postulate of Dalton's Theory: "Atoms of same elements are identical that is similar in mass and shape. and atoms of different elements are different in all aspects