Atomic Theory-Evolution of the atom

What did Rutherford discover about atoms?

• An atom is always negatively charged.

• An atom is mostly empty space, but has a dense positively charged center(nucleus).

• An atom is always positively charged.

• All particles will pass straight through gold foil with no change in path.

The theory of Democritus held that everything is composed of _________.

• atoms

• numbers

• shapes

Who started the modern atomic theory (backed with data) of the atom?

• Democritus

• Dalton

• Thomson

• Bohr

This image is an example of ...

• A Bohr model

• A Dalton model

• A Rutherford model

• A Thomson Model

Which of the choices below has the correct order of scientists' discoveries of the structure of an atom?

• Bohr, Democritus, Dalton, Thomson, Rutherford, Schrodinger

• Democritus, Dalton, Thomson, Schrodinger, Bohr, Rutherford

• Democritus, Dalton, Thomson, Rutherford, Bohr

• Schrodinger, Bohr, Rutherford, Thomson, Dalton, Deomcritus

Who performed the famous 'gold foil experiment'?

• o Dalton

• o Thomson

• o Rutherford

• o Bohr

Which of the four Physicists was first to work with cathode rays?

• o Dalton

• o Thomson

• o Rutherford

• o Bohr

Which one of these is Dalton's Model?

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Which model was created after the discovery of the nucleus?

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Which model was created after the discovery of the electron cloud?

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