5) Using the semiempirical mass formula to compute the total binding energy for 5TFe.

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I mass formula to compute the total binding energy for Fe.
5) Using the semiempirical
Transcribed Image Text:I mass formula to compute the total binding energy for Fe. 5) Using the semiempirical
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Concept and Principle:
  • The Weizsaecker formula or semi-empirical formula is a refined form of the liquid-drop model of atomic nuclei. It can be used to calculate the binding energy of a nucleus.

 

  • The Weizsäcker formula is given by,

B=avAasA23acZ(Z1)Aas(NZ2A)±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 the paring term will become zero, when A, Z, and N are even the paring term will be positive, and when A is even, Z, and N are odd the paring term will be negative.
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