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Review Atomic Theories

Authored by Irish Idias

Chemistry

10th Grade

Review Atomic Theories
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the Gold Foil Simulation, you send alpha particles toward a thin sheet of gold. Most pass through without deflection. What does this mean?

A. Alpha particles are invisible

B. Atoms are mostly empty space

C. Gold has no electrons

D. Alpha particles have no mass

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the Gold Foil Experiment, why did Rutherford expect all alpha particles to pass straight through the foil?

A. He believed atoms were solid spheres

B. He believed in the “plum pudding” model

C. He thought alpha particles were too light

D. He thought gold atoms were smaller than alpha particles

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When exploring the Millikan Oil Drop Simulation, you adjust the electric field until an oil droplet is suspended in mid-air. What is this point called?

A. Critical drop point

B. Equilibrium point

C. Terminal velocity

D. Static levitation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the Oil Drop Experiment, why is it important to balance the gravitational force and the electric force on the droplet?

A. To make it glow

B. To measure the charge of an electron

C. To remove air resistance

D. To make the oil lighter

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these observations in the cathode ray simulation helped Thomson conclude that electrons are part of all atoms?

A. The beam was always the same regardless of the metal used

B. The beam disappeared without electricity

C. The beam could not pass through glass

D. The beam moved faster in water

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When exploring the Millikan Oil Drop Simulation, you adjust the electric field until an oil droplet is suspended in mid-air. What is this point called?

A. Critical drop point

B. Equilibrium point

C. Terminal velocity

D. Static levitation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the Oil Drop Experiment, why is it important to balance the gravitational force and the electric force on the droplet?

A. To make it glow

B. To measure the charge of an electron

C. To remove air resistance

D. To make the oil lighter

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