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Which statement is part of Dalton's atomic theory?

Group of answer choices

D. Electrons move around the nucleus in an electron cloud.

A. Atoms are composed of protons, neutrons, and electrons.

C. One type of atom cannot be changed to another type by a chemical reaction.

B. Elements can have atoms that are isotopes.

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Answer:

A. Atoms are composed of protons, neutrons, and electrons.

Explanation:

Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.

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