10/14 P4 bohr atom and thomas rutherford

In an atom, electrons move in definite orbits around the nucleus.

• Thomson
• Rutherford
• Bohr
• Democritus

What scientist is best known for his "Plum Pudding" model of the atom?

• J.J. Thomson
• Ernest Rutherford
• John Dalton
• Democritus

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What contribution did John Dalton make to atomic theory? 

• He discovered that every atom was positively charged. 
• He discovered that every element consisted of one type of atom that couldn't be divided. 
• He discovered that atoms had nuclei. 
• He discovered that atoms could be divided into smaller parts. 

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Rutherford's gold foil experiment provided evidence that...

• negative and positive charges are spread evenly throughout the atom.
• alpha particles have a positive charge.
• gold is not a dense as previously thought.
• there is a dense positively charged nucleus at the center of an atom.

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Who came up with the model of an atom pictured?

• J.J. Thompson
• Ernest Rutherford
• Neils Bohr
• James Chadwick

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The Billiard Ball is the nickname for ________ theory.

• Dalton
• Neils Bohr
• JJ Thomson
• Ernest Rutherford

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Electron cloud is based on

• Quantum Mechanics
• Gold Foil Experiment
• Matter is made up of small particles called atoms
• Nuclear Theory

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Who discovered the proton?

• Thomson
• Dalton
• Bohr
• Rutherford

He developed the planetary model of the atom.

• Rutherford
• Bohr
• Chadwick
• Dalton

This model this model was the first to show a nucleus, consisting of protons and neutron.  Electrons surround the nucleus but are not shown in distinct energy levels. 

• The "Rutherford Model" of the atom
• The "Plum Pudding Model" of the atom
• The "Quantum Mechanical Modell" of the atom
• Democritus's model of the atom

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