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Flashcards in chem Deck (11)
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1

Used the cathode ray tube to support his findings.

thompson

2

Had no evidence to support an atom’s existence.

democritus

3

Atoms combine in whole number ratios.

dalton

4

Chemical reactions occur when atoms separate, join, or rearrange.

dalton

5

Discovered the electron

thompson

6

Said that atoms of the same element are identical, but the atoms of one element are different than those of another.

dalton

7

Used the gold foil experiment to discover the nucleus.

rutherford

8

Said that the atom was mostly empty space.

rutherford

9

Discovered the proton.

goldstein

10

Provided evidence supporting the existence of atoms.

dalton

11

Discovered the neutron.

james chadwick