Question

Dalton's postulate, "Atoms of different
elements have different masses and chemical
properties" violates in case of​

Answer 1

Answer:

Isotopes

Explanation:

Isotopes of an element have same chemical properties but different masses.

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Answer 2

Answer:

Explanation:

The postulates of Dalton"s atomic theory may be stated as follows:

(i) All matter is made of very tiny particles called atoms.

(ii) Atoms of a given element are identical in mass and chemical properties.

(iii) Atoms of different elements have different masses and chemical properties.

(iv) Atoms combine in the ratio of small whole numbers to form compounds.

(v) The relative number and kinds of atoms are constant in a given compound.

So Atoms of a given element are not identical in mass or chemical properties.

This is not a Postulate of atomic theory.