Atomic Theory Actual Quiz

How did Rutherford discover the proton?

• Cathode tube ray experiment
• Gold Foil Experiment
• Planetary Model
• Plum Pudding Model

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NGSS.HS-PS1-8

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

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

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NGSS.MS-PS1-1

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.  
• He discovered that atoms had nuclei. 
• He discovered that atoms could be divided into smaller parts. 

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NGSS.MS-PS1-1

J.J. Thomson provided evidence that an atom...

• is the smallest particle of matter
• contains negatively charged particles
• has an overall negative charge
• has an overall positive charge

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NGSS.MS-PS1-1

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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NGSS.MS-PS1-1

Who came up with this model of an atom?

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

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NGSS.MS-PS1-1

J.J. Thomson's model of the atom is given this name because he believed that electrons were spread randomly throughout a positive sphere.

• plum pudding model
• orbital model
• Thomson's model
• plasma model

Order the atomic models below from the oldest to the most recent.

• 2, 1, 3, and 4

• 1, 2, 4, and 3

• 3, 2, 4, and 1

• 3, 1, 2, and 4

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NGSS.MS-PS1-1

Which statement is true according to current thinking?

• An atom is mostly empty space.
• An atom is a collection of particles, so tightly packed that there is little empty space.
• The atomic nucleus is very mobile, and moves around inside a cloud of electrons.
• The size of atoms changes over time, pulsating from large to small to large again.

Whose model of an atom is displayed in the picture?

• Thomson
• Rutherford
• Dalton
• Bohr

Tags

NGSS.MS-PS1-1