Atomic Structure Quiz

What is the neutron's electric charge?

• Positive

• Variable

• Negative

• Neutral

What percentage of an atom's mass is accounted for by the nucleus, protons, and neutrons?

• 75%

• 99.9%

• 50%

• 90%

What elementary particles make up a neutron?

• Protons

• Electrons

• Neutrinos

• Quarks

What is the rest mass of a neutron compared to that of an electron?

• Equal

• Greater

• Lesser

• Variable

What is the residual effect that binds the nucleus together?

• Electromagnetic force

• Weak force

• Gravitational force

• Strong force

What is the neutron composed of?

• Two up quarks and one down quark

• One up quark and one down quark

• Two down quarks

• Two up quarks

Which particles are commonly called nucleons?

• Protons and neutrinos

• Neutrons and protons

• Protons and electrons

• Neutrons and electrons

What governs the behavior of the quarks that make up protons and neutrons?

• Strong force

• Gravitational force

• Weak force

• Electromagnetic force

What revealed that neither the neutron nor the proton is a true elementary particle?

• Chemistry experiments

• Astrophysics observations

• High-energy particle physics

• Quantum mechanics

What is the mass ratio between a neutron and a proton?

• 1:4

• 1:1

• 1:3

• 1:2