Homework Help is Here – Start Your Trial Now!
Science
Advanced Physics
198 4) Use the Weizsäcker formula to calculate the binding energy for Au

198 4) Use the Weizsäcker formula to calculate the binding energy for Au

icon
Related questions
Question
4) Use the Weizsäcker formula to calculate the binding energy for 79Au 198
Transcribed Image Text:4) Use the Weizsäcker formula to calculate the binding energy for 79Au 198
Expert Solution
Concept and Principle:
  • Weizsäcker formula is used to estimate the binding energy of an atomic nucleus from its number of protons and neutrons.

 

  • It represents the liquid-drop model of the atomic nucleus and the value of coefficients was calculated from experimental and theoretical data from the liquid-drop model.

 

  • The Weizsäcker formula is given by,

B=avA−asA23−acZ(Z−1)A13−asy((N−Z)2A)±ap1A12

Here av is the volume term constant and has a value of 15.5 MeV, as is the surface term constant and has a value of 16.8 MeV, ac is the coulomb term constant and has a value of 0.72 MeV, asy is the symmetric term constant and has a value of 23 MeV, ap is the pairing term constant and has a value of 34 MeV, A is the mass number, Z atomic number, and N is the number of neutrons.

 

  • When the A is odd ap will become zero, when A, Z, and N are even the ap will be positive, and when A is even, Z, and N are odd ap will be negative.
steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer