History Of Atom Flashcards

1
Q

Which scientist said matter is made from atoms?

A

Democritus

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2
Q

Which scientist said opposite charges attract?

A

Charles- Augustin de Coulomb

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3
Q

Which scientist said atoms of 1 element are the same?

A

John Dalton

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4
Q

Which scientist came up with the plum pudding model?

A

J.J Thomson

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5
Q

What is the plum pudding model?

A

Electrons are raisins inside a positively charged pudding

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6
Q

What did Ernest Ruthford say?

A

The atom must be made from a very dense positive center

Most of the atom must be empty space

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7
Q

What did Niels Bohr say?

A

Every atom had specifc numbers of electron shells

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8
Q

Which scientist said you can never know the location and energy of an electron?

A

Werner Heisenberg

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9
Q

Which scientist said atoms have a nucleus with protons and neutrons?

A

James Chadwick

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10
Q

Who published the gold foil experiment?

A

Ernest Ruthford

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