Atomic Theory

Which scientist discovered the electron?

• Bohr

• Thomson

• Rutherford

• Dalton

Whose model of the atom is pictured?

• Rutherford

• Thomson

• Dalton

• Bohr

What did Rutheford discover about atoms?

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

• An atom is always negatively charged

• An atom is always positively charged

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

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Whose atomic model is shown?

• Bohr

• Dalton

• Thomson

• Rutherford

What 2 particles would you find in the nucleus of an atom?

• Protons and Electrons

• Protons and Neutrons

• Electrons and Neutrons

• Neutrons and Electrons

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What particle has no charge?

• Nucleus

• Proton

• Electron

• Neutron

Who came up with the first atomic theory?

• Thomson

• Rutherford

• Dalton

• Schrodinger

All of Dalton's theories are correct EXCEPT -

• All atoms of the same element are identical

• All matter is made of atoms

• Compounds contain different atoms

• Atoms of different atoms can combine in whole number ratios

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Rutherford did experiments to show -

• Neutrons are located in the nucleus

• Atoms are mostly empty space

• Atoms contain negative particles, now known as electrons

• Matter cannot be lost or gained

The scientist credited for discovering the nucleus is -

• Dalton

• Chadwick

• Bohr

• Rutherford