Question

Which of the following is not part of Dalton's atomic theory?

1 Atoms can be broken down into smaller pieces.
2 All atoms of a given element are the same.
3 Different elements are made up of different atoms.
4 All matter is made up of atoms.

Answer 1

1 is the answer atoms can be broken down into smaller pieces

Answer 2

The answer is 1. Atoms can be broken down into smaller pieces.