Exploring Atomic Structure and Models

What did Rutherford's gold foil experiment demonstrate about the structure of the atom?

• Atoms are solid spheres.

• Atoms have a small, dense nucleus.

• Electrons are located in fixed orbits.

• Atoms are mostly empty space.

Which model of the atom was proposed by J.J. Thomson?

• Nuclear model

• Planetary model

• Plum pudding model

• Quantum model

In the plum pudding model, what are the "plums" supposed to represent?

• Neutrons

• Protons

• Electrons

• Nuclei

What particles are found in the nucleus of an atom?

• Electrons and protons

• Protons and neutrons

• Neutrons and electrons

• Only protons

Which of the following is NOT a part of Rutherford's atomic model?

• A dense nucleus

• Electrons orbiting the nucleus

• Atoms are mostly empty space

• Electrons embedded in a positive sphere

What is the charge of a proton?

• Neutral

• Positive

• Negative

• It has no charge

How did Rutherford's model differ from Thomson's model?

• Rutherford's model included a nucleus, while Thomson's did not.

• Thomson's model had a nucleus, while Rutherford's did not.

• Both models included a nucleus.

• Neither model included electrons.

What did Rutherford conclude about the atom after his gold foil experiment?

• Atoms are indivisible.

• Atoms have a dense center called the nucleus.

• Electrons are located in the nucleus.

• Atoms are solid throughout.