Multiple choice

Which of the following was NOT a part of Dalton's Atomic Theory?

  1. All matter is made of atoms, which are indivisible

  2. All atoms in an element are identical in mass and properties

  3. Compounds are formed by two or more of the same atom

  4. A chemical reaction is a rearrangement of atoms
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C Correct answer
Explanation

Dalton's theory stated that compounds are formed by the combination of different atoms in fixed ratios, not by the same atom.

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