U3 - Atomic Theory Scientists

U3 - Atomic Theory Scientists

Assessment

Flashcard

Chemistry, Other Sciences

6th - 8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the Plum Pudding Model?

Back

A model of the atom proposed by J.J. Thomson, suggesting that atoms are composed of a positively charged 'soup' with negatively charged electrons scattered throughout.

2.

FLASHCARD QUESTION

Front

What does the Billiard Ball Model represent?

Back

A model proposed by John Dalton, depicting atoms as solid, indivisible spheres, similar to billiard balls.

3.

FLASHCARD QUESTION

Front

Who discovered the neutron?

Back

James Chadwick discovered the neutron in the 1930s.

4.

FLASHCARD QUESTION

Front

What is the Planetary Model of the atom?

Back

A model developed by Niels Bohr, which describes electrons orbiting the nucleus in defined paths, similar to planets orbiting the sun.

5.

FLASHCARD QUESTION

Front

What did Bohr believe about electrons?

Back

Bohr believed that electrons orbit the nucleus at specific distances, with quantized energy levels.

6.

FLASHCARD QUESTION

Front

What is the Gold Foil Experiment?

Back

An experiment conducted by Ernest Rutherford that demonstrated the existence of a small, dense nucleus within the atom.

7.

FLASHCARD QUESTION

Front

What is the role of protons in an atom?

Back

Protons are positively charged particles found in the nucleus of an atom, determining the atomic number and identity of the element.

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