Chapter 42: Q9P (page 1302)
The contains (a) how many protons and (b) how many neutrons?
Short Answer
- There are6 protons in the .
- There are8 neutrons in the .
Chapter 42: Q9P (page 1302)
The contains (a) how many protons and (b) how many neutrons?
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Get started for freenucleus with a kinetic energy of 3.00 MeV is sent toward a nucleus. What is the least center-to-center separation between the two nuclei, assuming that thenucleus does not move?
a. Show that the massMof an atom is given approximately by , whereAis the mass number and is the proton mass. For (b) , (c),(d), (e) , and (f) , use Table 42-1 to find the percentage deviation between and :
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(g) Is a value ofaccurate enough to be used in a calculation of a nuclear binding energy?
A radiation detector records 8700 counts in 1.00 min. Assuming that the detector records all decays, what is the activity of the radiation source in (a) Becquerel and (b) curies?
What is the binding energy per nucleon of the europium isotope ? Here are some atomic masses and the neutron mass.
Large radionuclides emit an alpha particle rather than other combinations of nucleons because the alpha particle has such a stable, tightly bound structure. To confirm this statement, calculate the disintegration energies for these hypothetical decay processes and discuss the meaning of your findings:
The needed atomic masses are
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