Question

9. Which of the following is NOT a part of Dalton's atomic theory?
(a)All elements are composed of atoms.
(b) Atoms of the same element are always identical
(c) Atoms are always in motion
(d) Atoms that combine do so in simple, whole-number ratios.​

Answer 1

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Explanation:

Answer 2

Option (c) Atoms are always in motion is NOT a part of Dalton’s atomic theory.