Question

In: Advanced Math

give the compound nucleus resulting from protons bombarding an aluminum target

give the compound nucleus resulting from protons bombarding an aluminum target

Solutions

Expert Solution

The excitation functions of the reactions 27Al(p, p0)27Al,27Al(p, p3)27Al and 27Al(p, α0)24Mg are measured in the proton energy range Ep = 3.5 − 5.5 MeV with an energy resolution of about 5 keV. The differential cross sections are measured with an accuracy of ±15% at lab angles of 90° and 150°. The excitation curves exhibit sharp maxima of 10 to 50 keV width superimposed on a broad 150–200 keV wide structure. A fluctuation analysis of the data in terms of autocorrelations yields a coherence energy varying from 15±3 keV to 22±3 keV depending upon the excitation functions and the averaging interval chosen. Non-zero cross correlations between the two α0 yield curves and the p3 yield curve indicate the presence of the correlated resonance structure due to individual or groups of similar levels in the compound nucleus 28Si in the region of excitation from 15.3 to 16.9 MeV.

OR


Related Solutions

A proton in an atomic nucleus is bound to other protons and neutrons in the nucleus...
A proton in an atomic nucleus is bound to other protons and neutrons in the nucleus by the strong nuclear force when it is within approximately 3 fm of another particle. What is the approximate kinetic energy of a proton that is localized to such a region? What would be the corresponding energy of an electron localized to within such a region? Compare this to typical beta energies for beta decay. Is a release of electrons
select all of the following that are true: a) protons are in the nucleus and electrons...
select all of the following that are true: a) protons are in the nucleus and electrons are relatively far from the nucleus. b) protons and electrons are both present in the nucleus held together by coulombic forces resulting from their opposite charges. c) Electrons in an atom can exist at any energy d) Electrons in an atom can only exist at specific energies. e) Bohr's model states that electrons exist at specific distances from the atom f) Light of specific...
The nucleus of 8Be, which consists of 4 protons and 4 neutrons
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles(helium nuclei, each consisting of 2 protons and 2 neutrons). (a)What is the force between the two alpha particles when they are5.00 X 10-15m apart, and (b) what will be the magnitude of the acceleration of the alpha particles due to this force? Note that the mass of an alpha particle is 4.0026 u.
Suppose an atom is like hydrogen but it has two protons in the nucleus and, like...
Suppose an atom is like hydrogen but it has two protons in the nucleus and, like hydrogen, has only one electron (see section 7.8). Suppose also that this atom is in the (n, l, m_l) = (3, 2, 0) state. Calculate the probability of finding the electron within a distance of 0.0529 nm.
Consider a 3919K nucleus to be a sphere with the nineteen protons uniformly distributed throughout. (a)...
Consider a 3919K nucleus to be a sphere with the nineteen protons uniformly distributed throughout. (a) Determine the radius of this sphere (in m). m (b) If the energy needed to assemble a uniformly charged sphere of charge Q and radius R from separate charges is U = 3keQ2 5R , determine the energy (in MeV) needed to assemble a uniformly charged sphere consisting of nineteen protons and with the radius determined in part (a). MeV (c) Determine the binding...
Write a Formula for the ionic compound that forms from each pair of element Aluminum and...
Write a Formula for the ionic compound that forms from each pair of element Aluminum and oxygen Beryllium and iodine Calcium and sulfur Calcium and iodine
The neutral Helium atom is made of a nucleus (containing two protons and two neutrons) and...
The neutral Helium atom is made of a nucleus (containing two protons and two neutrons) and two electrons. The electrons have an average separation from the nucleus of r =31pm. Note: 1pm = 10-12m (pico-meter) Consider the average configuration of the Helium atom shown above, treating the nucleus as a single charge of the appropriate size. What is the magnitude of the total electric force acting on one of the electrons?
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and...
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles (helium nuclei, each consisting of 2 protons and 2 neutrons). (a) What is the force between the two alpha particles when they are 3.40 10-15 m apart? Your response differs from the correct answer by more than 10%. Double check your calculations. N (b) What is the initial magnitude of the acceleration of the alpha particles due to...
Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and hydrogen gas. The resulting...
Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and hydrogen gas. The resulting gas is collected over water and it measured to have 218.6 ml at 26°C and 0.947 atm. If the vapor pressure of water is 25.2 mmHg at 26ºC, how many grams of aluminum reacted? Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules. What is the partial pressure of nitrogen in air...
An aluminum rod is subject to electrolysis in an aqueous solution resulting in the production of...
An aluminum rod is subject to electrolysis in an aqueous solution resulting in the production of Al2O3 at the _______________ and H2 gas at the _______________. a. Give the balanced anode and cathode half reactions. Anode Half-Reaction:______________________________________________________________________________________ Cathode Half-Reaction:____________________________________________________________________________________ b. How many grams of Al2O3 are produced using a constant current of 142 A for 5.00 minutes? Answer:____________________________ c. How many minutes are required to produce 2.00 L of H2 gas at STP at a constant current of 142 A?...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT