Development of the atomic theory

Development of the atomic theory

Multiple Choice

All of the alpha particles were deflected during the gold-foil experiment?

• True

• False

Multiple Select

Why wasn't Democritus' theory widely accepted?

• All of his theory was based on thought

• He wasn't respected

• It wasn't based on scientific evidence

Multiple Choice

Where did Rutherford propose that most of the mass of an atom resided?

• In the middle of the atom

• Along the edge of the atom

• Scattered throughout the atom

• Orbiting around the atom

Multiple Choice

What is this model of the atom called?

• Bohr's Model

• Democritus' Model

• Rutherford's Model

• Plum Pudding Model

Multiple Choice

When did J.J. Thomson run his cathode-ray tube experiment?

• 1801

• 460 BCE

• 1897

• 1810

Multiple Choice

What are electrons?

• an atom’s central regions, which is made up of protons and neutrons

• subatomic particles that have negative charges

• subatomic particles that have neutral charges

• subatomic particles that have positive charges

Multiple Choice

What is a nucleus?

• An atom’s central region, which is made up of protons and neutrons

• Subatomic particles that have negative charges

• subatomic particles that have positive charges

• Subatomic particles that have neutral charges

Multiple Choice

What did Ernest Rutherford discover with his experiments?

• Atom

• Electron

• Nucleus

• Kinetic Energy

Multiple Choice

What did the cathode-ray tube experiment prove?

• Atoms could be broken into smaller parts

• Atoms caused the changes in matter

• Atoms join to create compounds

• The center of an atom has a nucleus

Multiple Choice

What does the word "atomos" mean?

• science is cool

• not reactive

• unable to be cut or divided

• small

Multiple Choice

Who developed this model of the atom?

• Plum Pudding Model

• J.J. Thomson

• Proto-Electron Model

• Ernest Rutherford

Multiple Choice

What experiment did J.J. Thomson run to develop his model of the atom?

• Gold-Foil Experiment

• Definite Proportion Experiment

• Cathode-Ray Tube Experiment

• No experimentation was done

Multiple Choice

This is an example of which model of the atom?

• Rutherford's Model

• Plum Pudding Model

• Atomic Model

• Bohr's Model

Multiple Choice

Who ran the gold-foil experiment?

• Rutherford

• Thomson

• Democritus

• Dalton