Question

Explain how madern atomic theary
contradicted Dalton's atomic theary​

Answer 1

Dalton's atomic theory says that matter is made up of indivisible particles called atoms. But the modern atomic theory contradicts it by saying that atom is a divisible particle that can be divided into protons,electrons and neutrons.

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Answer 2

Lets See How Modern Atomic Theory Contradicted Dalton's Atomic theory :-

• Dalton first Theory Was that Atoms Are Indivisible Particles Which cannot be divided any Furthur . But Now we Know that Atoms Can Be Divided Into Three Sub Atomic Particles namely,'Electrons , Protons and Neutrons'.

• According To Dalton's Atomic theory All Atoms Of Same Element Have a Same Mass and Chemical Properties. However Now We Know That In a Given element There are Certain Atoms Called 'Isotopes' which Have Different Mass and Chemical Properties Than rest of the Of The Atoms of Same Element.

• According To Dalton's Atomic Theory Atoms Of Different Elements Have Different Masses.However Now we Know that There Are Some Atoms Of Different Element Called 'Isobars' have Same Mass

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