History of Atomic Models

History of Atomic Models

Assessment

Assessment

Created by

Sakinah Ellickson

Chemistry

9th Grade

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15 questions

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1.

Multiple Choice

45 sec

1 pt

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Whose model suggested that negative particles were mixed in with positively charged material - like seeds in a watermelon?

J.J. Thomson

Ernest Rutherford

Niels Bohr

Albert Einstein

2.

Multiple Choice

45 sec

1 pt

Who discovered that the atom had an small, dense, positively charged center?

Ernest Rutherford

J.J Thomson

Robert Millikan

John Dalton

3.

Multiple Choice

45 sec

1 pt

Place the following atomic models in order, from earliest to latest:


A) Rutherford B) Thomson C) Dalton

B, C, A

C, A, B

A, C, B

C, B, A

4.

Multiple Choice

45 sec

1 pt

What can you conclude from the fact that scientists continue to update the atomic model?

New information about atoms continues to be discovered

Old information about atoms is completely useless

Scientists did not have any information about atoms until a few years ago

Scientists still have no idea what atoms look like

5.

Multiple Choice

45 sec

1 pt

Who named the positive center of the atom the "nucleus?"

Democritus

Dalton

Thomson

Rutherford

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