Question

what are isotopes?how does existence of items isotopes contradict Dalton's atomic theory??

PLS DO EXPLAIN!!!!​

Answer 1

hope this will help you. first is defination of isotopes and other is about dalton.

Answer 2

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The existence of isotopes violates one of the original ideas of Dalton's atomic theory. ... Solution Dalton originally thought that all atoms of a particular element had identical properties, including mass. Thus, the concept of isotopes, in which an element has different masses, was a violation of the original idea.