Nuclear Model Intro.

What is the world made of?

• Water and land

• Atoms and molecules

• Plants and animals

• Love and peace

How do nuclear reactors work?

• By burning fossil fuels

• Through solar power

• Using wind energy

• By initiating controlled nuclear reactions

What is the nuclear model of the atom characterised by?

• A large nucleus surrounded by protons

• A small nucleus surrounded by electrons

• A small nucleus surrounded by neutrons

• A large nucleus surrounded by neutrons

Why do protons in the nucleus repel each other?

• Because of the strong nuclear force

• Because of gravitational attraction

• Because of electrostatic repulsion

• Because of magnetic attraction

What does the strong nuclear force define?

• The repulsion between electrons and protons

• The attraction between neutrons and electrons

• The force that holds the nucleus together

• The force that causes the nucleus to decay

What contributes to the stability of a nuclide?

• The operation of the strong nuclear force over long distances

• The electrostatic repulsion between protons and electrons

• The relative number of protons and neutrons in the nucleus

• The gravitational pull between different nuclides

What does the nuclear model of the atom primarily consist of?

• A large nucleus surrounded by neutrons

• A small nucleus surrounded by electrons

• A dense cluster of electrons and protons

• A single large proton with multiple neutrons

According to the nuclear model, atoms are mostly made up of what?

• Dense materials

• Empty space

• Protons and neutrons

• Electrons only

If the proton in an atom was enlarged to the size of a soccer ball, how far away would the electrons be?

• 6 meters away

• 60 meters away

• 600 meters away

• Over 6 kilometers away

What does the nucleus of an atom contain according to the nuclear model?

• Electrons and protons

• Protons and neutrons

• Neutrons and electrons

• Only protons