Two nuclei having the same mass number are called isobars. Calculate the difference in binding energy per nucleon for the isobars 2311Na and 2312Mg. How do you account for the difference?
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- Find the binding energy and binding energy per nucleon of the 27/13 Al nucleus.Calculate the Q value and threshold energy for the 20Ne( α, 12C)12C reaction. What will be the sum of the kinetic energies of the 12C nuclei if the alpha particle initially has 45 MeV of kinetic energy in the lab?The stable nuclei 36Ar and 76Se both differ by 20 in atomic number from 56Fe, which lies at the peak of the binding energy per nucleon curve. Find B/A for both 36Ar and 76Se. Which one has the larger B/A? Why is this to be expected?
- 58Ni is one of the most tightly bound stable nuclei. 258Ha is one of the largest nuclei ever made. Assume both of these nuclei can be modeled as tightly-packed spheres of their nucleons. Part (a) What is the radius of 58Ni in femtometers? Part (b) What is the ratio of the radius of 58Ni to that of 258Ha? Note that the radius of the larger nucleus is still much smaller than the size of an atom.24 Mg and 12 63 Cu. (For the atomic masses, see this table. Enter your answers to at least two decimal places.) Find the average binding energy per nucleon of 29 (a) 24 Mg 12 8.26 MeV/nucleon (b) 63 Cu 29 8.3 Your response is within 10% of the correct value, This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermThe amount of radioactive 40K in a 70kg person is approximately 5000Bq. A) what is the number (N) of radioactive 40K nuclei in the body? The half life of 40K is 1.25x109 years. B)What is the amount of natural potassium (in grams) in the body? The abundance of 40K is 0.012% of the natural potassium 39K