Understanding Atoms and Fundamental Particles

What is the charge of a neutron?

• Variable

• Neutral

• Negative

• Positive

In the quantum model, where are electrons most likely to be found?

• Inside the nucleus

• In a straight line

• In probability clouds

• In fixed orbits

Which particles are considered fundamental according to the standard model?

• Quarks and leptons

• Ions and isotopes

• Atoms and molecules

• Protons and neutrons

What is the composition of a proton in terms of quarks?

• Two up quarks and one down quark

• One up quark and two down quarks

• Three up quarks

• Three down quarks

What force holds protons and neutrons together in the nucleus?

• Gravitational force

• Weak force

• Electromagnetic force

• Strong force