Use the atomic masses of the mirror nuclei 27Al and 27Si to derive the value of the Coulomb coefficient aC (in MeV) in the Bethe-Weiszäcker mass formula.
Use the atomic masses of the mirror nuclei 27Al and 27Si to derive the value of...
A pair of nuclei for which Z1 = N2 and Z2 = N1 are called mirror isobars (the atomic and neutron numbers are interchanged). Binding-energy measurements on these nuclei can be used to obtain evidence of the charge independence of nuclear forces (that is, proton-proton, proton-neutron, and neutron-neutron nuclear forces are equal). Calculate the difference in binding energy for the two mirror isobars Be and 3li. The electric repulsion among four protons rather than three accounts for the difference. (Use...
Find the energy Q released in the fusion reaction. (Note that the reaction below is between nuclei. For the atomic masses, see this table. The mass of an electron is 0.00054 1H+3He → 4He + e+ + ν MeV
Find the energy Q released in the fusion reaction. (Note that the reaction below is between nuclei. For the atomic masses, see this table. The mass of an electron is 0.00054 1H+3He → 4He + e+ + ν MeV
A pair of nuclei for which Z1 = N2 and Z2 = N1 are called mirror isobars (the atomic and neutron numbers are interchanged). Binding-energy measurements on these nuclei can be used to obtain evidence of the charge independence of nuclear forces (that is, proton-proton, proton-neutron, and neutron-neutron nuclear forces are equal). Calculate the difference in binding energy for the two 15 ror isobars s ic masses as necessary.) and 7·The electric repulsion among eight protons rather than seven accounts...
2. “Mirror Nuclei” are a pair of nuclei with the same A, but where the number of neutrons in ’nucleus 1’ is equal to the number of protons in ’nucleus 2’. In other words, switching n ↔ p will switch between the nuclei. In even more words, Z1 = N2 and N1 = Z2. (a) Show that the only terms of the SEMF binding energy that differs between mirror nuclei is the Coloumb term. (b) The isotopes 39K and 39Ca...
2. [7 marks] (a) Use the semi-empirical binding energy formula (above) and B to obtain the semi-empirical Zm, + Nm, mass formula (SEMF). [Assume A is odd so that the pairing term is zero.] (b) Mirror nuclei are nuclei with the same mass number A and interchanged values of N and Z, e.g. IN-Z] 1. Which terms in the above formula give rise to differences in atomic mass between a pair of mirror nuclei? (c) Calculate the predicted atomic mass...
(a) Beginning with the Weizsäcker mass parabola occurs at a value of atomic number, 2min, semi-empirical mass formula, show that the minimum in aa given min Sym (b) Using the data in the following table, calculate the value of Znin for an ato 146. Parameter av as ac Value 15.8 17.8 0.71123.7 (as appropriate) as ap 0, +34 (MeV) (c) The table below gives the atomic masses of a number of nuclides with A 14 6. (O) Identify any p-stable...
Problem 5 Nuclear Physics Mirror nuclei have the same odd value of A, but the values of Z and N are interchanged. Consider the case of 150 and 15N. a) Determine the mass difference between the two nuclei. b) Consider the shell (spectroscopic) model and draw the neutron and proton wells, respectively. Show the filling of each nucleus' well in the ground state. c) Show that 94236Pu is unstable and will a-decay.
2. Consider two masses conne two masses with friction". Assume that there is a significant friction between mass m, and the supporting, horizontal surface. What must be the value of the coefficient of kinetic friction u. for the two masses to move at a constant velocity? The constant velocity means that the acceleration a 0. Derive the formula for u, relative to masses m, and m. Remember that the condition for constant velocity is that the sum of forces acting...
Calculate the formula mass of each compound. Keep at least one decimal place in atomic masses from the periodic table. amu H2S HFO2 amu
A sample of N2O3 contains 2.26 moles of nitrogen. Use the following atomic masses: N =14, O=16. The number of moles of N2O3 present = mol N2O3 The mass of the sample = g N2O3 The number of moles of oxygen in the sample = mol O The mass of oxygen in the sample = g O