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Sample Chem Quiz First Semester

The 'Sample Chem Quiz First Semester' assesses foundational knowledge in atomic structure, featuring key experiments and discoveries by scientists like Democritus, Dalton, Thomson, Rutherford, and Millikan. It covers concepts...

Questions: 39 | Attempts: 100 | Last updated: Oct 22, 2025

Sample Question 1
What did Democritus do?

Law of definite proportions

All matter is continuous

Discovered electron

All matter is made of "atoms"

Gold Foil Experiment discovered nucleus

Sample Question 2
Who is credited with the first atomic theory?

Dalton

Rutherford

Democritus

Thomson

Aristotle

Sample Question 3
Who preformed the cathode ray tube experiment and discovered the electron?

Dalton

Rutherford

Thomson

Proust

Newton