Atomic Theory

Atomic Theory

Assessment

Flashcard

Chemistry

9th - 11th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

Who proposed that the atom is a solid sphere?

Back

Democritus and Dalton

2.

FLASHCARD QUESTION

Front

What did Democritus believe about atoms?

Back

He believed that atoms are small, hard particles that are indivisible.

3.

FLASHCARD QUESTION

Front

What did Ernst Rutherford discover using the gold foil experiment?

Back

He discovered the proton.

4.

FLASHCARD QUESTION

Front

Which atomic model is most similar to the solar system?

Back

Bohr's model.

5.

FLASHCARD QUESTION

Front

Who was the first to publish a theory about the existence of atoms?

Back

John Dalton.

6.

FLASHCARD QUESTION

Front

What is the main idea of Dalton's atomic theory?

Back

All matter is made up of atoms, which are indivisible and indestructible.

7.

FLASHCARD QUESTION

Front

What did J.J. Thomson discover about the atom?

Back

He discovered the electron and proposed the 'plum pudding' model.

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