Nuclear model -Online Viva

Which of the following properties of a nucleus is best explained by the Liquid Drop Model?

• Energy levels of nucleons
• Nuclear stability based on magic numbers
• Nuclear fission and Binding energy

• Electron cloud structure

The term binding energy per nucleon is:

• The energy required to break the nucleus into its constituent nucleons
• The mass of the nucleus
• The charge of the nucleus
• The neutron-proton ratio

The Shell Model of the nucleus was developed to explain:

• Nuclear fission and fusion
• Magic numbers and nuclear stability
• The continuous spectrum of beta decay
• The repulsion between protons

What is meant by magic numbers in the Shell Model?

• Special numbers that define stable nuclear structures
• Numbers related to the atomic number of noble gases
• The number of neutrons in a radioactive nucleus
• The number of protons in any element

According to the Shell Model, nucleons arrange themselves in:

• Random positions
• Energy levels similar to electrons in atoms
• A uniform mass distribution
• A liquid-like structure

Which of the following is NOT a magic number?

• 2
• 8
• 12
• 20

Which term in the Liquid Drop Model accounts for the repulsion between protons?

• Surface term
• Asymmetry term
• Pairing term
• Coulomb term

Which term in the Semi-Empirical Mass Formula ( Binding Energy Formula) corrects for the odd-even nature of nuclei?

• Volume term
• Surface term
• Coulomb term
• Pairing term

In the Shell Model, what force is responsible for the energy gaps between shells?

• Coulomb force
• Nuclear attraction
• Electromagnetic force
• Spin-orbit interaction

Which model best explains the observed binding energy curve of nuclei?

• Shell Model
• Independent Particle Model
• Alpha Cluster Model
• Liquid Drop Model