Q1a. Calculate, using Weiszäcker formula, the binding energy per nucleon for 235U. Given: α = 15.8, β = 17.8, γ = 23.7, δ = 0.71 E = 34 for even - even or odd - odd nuclei. 0 otherwise
- Weiszäcker formula estimates nuclear binding energy (BE) from five terms.
- For ²³⁵U, A=235 and Z=92; it is an even-odd nucleus.
- Coefficients: a_v=15.8, a_s=17.8, a_c=0.71, a_a=23.7, a_p=34.
- Pairing term is 0 for even-odd nuclei (Z=even, N=odd).
Answer: The Weiszäcker semi-empirical mass formula (SEMF) is used to calculate the binding energy (BE) of a nucleus. For ²³⁵U, the atomic number (Z) is 92 and the mass number (A) is 235. The nucleus has an even number of protons (Z=92) and an odd number of neutrons (N=A-Z=143), classifying it as an even-odd nucleus. Based on typical magnitudes of SEMF coefficients, the provided parameters are mapped to their respective terms: α = 15.8 (volume coefficient, a_v), β = 17.8 (surface coefficient, a_s), δ = ...