Nuclear Stability

What force holds the nucleus together?

• Strong Nuclear Force

• Electrostatic Force

• Normal Force

• Gravity

What force pushes the protons away from each other?

• Strong Nuclear Force

• Electrostatic Force

• Normal Force

• Gravity

Which nucleus do you think will be the most stable?

• Nitrogen- 14

• Uranium- 238

What is the number of neutrons in Cesium?

• 55 neutrons

• 76 neutrons

• 84 neutrons

• 106 neutrons

• 139 neutrons

Nucleons are

• in the nucleus

• orbit the nucleus

• protons and electrons

• another type of neutrons

Which particle is not considered a nucleon?

• Proton

• Neutron

• Electron

The strong nuclear force is strong

• always

• only at short distances

• only at long distances

Which force can occur over a longer distance?

• strong nuclear force

• repulsive electric force

Which force is stronger in this case?

• Strong nuclear force

• Repulsive electric force

Why is the repulsive electric force (REF) stronger than the strong nuclear force (SNF) in this picture?

• Because the protons are far apart

• Because the SNF works at long distances

• Because the REF is weak at short distances

• Because the SNF overpowers the REF in this case