Changing Models of the Atom Flashcards

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What did Dalton's model say about whether atoms could be split?

Atoms are indivisible — not formed of any smaller particles.

True or false? Dalton said all atoms of the same element are identical, but today's model says atoms of the same element can have different numbers of neutrons.

True. Isotopes exist, so atoms of one element can differ in neutron number.