Evidence for Atomic Structure

Evidence for Atomic Structure

Assessment

Flashcard

Chemistry

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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14 questions

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1.

FLASHCARD QUESTION

Front

Who is the philosopher that stated that there must be some indivisible unit and called it an atom? Options: Democritus, Aristotle, Dalton, Thomson

Back

Democritus

2.

FLASHCARD QUESTION

Front

Who led to the idea of a negative subatomic particle?

Back

Thomson

3.

FLASHCARD QUESTION

Front

Experiments with alpha particles and gold foil led to the discovery of:

negative electron

,

electron energy levels

,

neutral neutron

,

a positive nucleus

Back

a positive nucleus

4.

FLASHCARD QUESTION

Front

What accounts for the larger deflections shown in figure 2 as compared to figure 1?

Media Image

Back

The positive charge is greater in figure 2

5.

FLASHCARD QUESTION

Front

Why are the alpha particles passing straight through?

Media Image

Back

The positive charge is too scattered to deflect them.

6.

FLASHCARD QUESTION

Front

Who's model is this?
Options: Millikan, Rutherford, Thomson, Dalton

Media Image

Back

Rutherford

7.

FLASHCARD QUESTION

Front

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

Media Image

Back

there is a dense positively charged nucleus at the center of an atom.

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