Question

Which of the following postulates of daltons atomic theory is question - contradicted with modern atomic theory

1-Matter consists of small particles called atoms.

2-Atoms of the same element are alike but differ from atoms of all other elements.

3-Compounds or molecules are formed when atoms combine with other atoms –in simple whole number ratios

4-An atom is the smallest unit of matter which takes part in a chemical reaction​

Answer 1

Explanation:

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

Answer:

4th one

Explanation:

it was correct according to both modern and dalton's theory I.e atom is smallest unit of matter which takes part in a chemical reaction