nuclear chemistry, assignment help | Nursing School Essays
nuclear chemistry, assignment help | Nursing School Essays
April 5, 2021/in Science Homework Help /by admin
1.
A radioisotope used for diagnosis must emit gamma rays of sufficient energy to escape from the body and it must have a half-life short enough for it to decay away soon after imaging is completed.
2.
Radioisotopes are used to preserve food because radioisotopes:
4.
An atom of uranium-238 undergoes radioactive decay to form an atom of thorium-234. Which type of nuclear decay has occurred?
5.
Which of the following particles of matter could be stopped by a thin piece of aluminum foil?
6.
The reaction between two deuterium atoms (2H) produces a 3H atom and a neutron (1n). The mass of the reactants is 4.0370 atomic mass units (amu) and the mass of the products is 4.0237 amu. The difference in mass is 0.0133 amu. How can you account for this mass difference?
7.
Identify the missing coefficient in the following equation:
8.
Which of the following phrases best describes the disposal method used for high-level nuclear waste?
9.
Uranium-238 decays very slowly, with a half-life of 4.47 billion years. What percentage of a sample of uranium-238 would remain after 13.4 billion years?
10.
A mass of 4.00 kilograms is completely converted into energy. What is this amount of energy in joules? (1 J = 1 kg m2/s2)
11.
Which type of nuclear waste is generated from hospitals and industry, as well as the nuclear fuel cycle, and is comprised of paper, rags, tools, clothing, filters, etc., which contain small amounts of mostly short-lived radioactivity?
12.
If an atom of polonium-218 were to undergo alpha emission, followed by two beta emissions, which nuclide would result?
13.
What would be the effect on the nucleus of an atom if it emitted one alpha particle and one gamma ray?
14.
Which of the following are considered advantages in support of using nuclear fission reactions?
15.
Beta particle emission occurs when the ratio of neutrons to protons in the nucleus is:
16.
Which statement is true regarding radioactive particles subjected to an electric field?
17.
In a nuclear reaction, the mass-energy of the reactants is generally:
18.
A sample of Strontium-90 is found to have decayed to one-eighth of its original amount after 87.3 years. What is the half-life of strontium-90?
19.
Which reaction produces the most energy per mass?
20.
Nuclear fusion reactions require a large initial input of energy in order to proceed. This energy is required to overcome:
21.
Although nuclear energy has many applications, concerns still remain in the area(s) of:
22.
The half-life of a specific element was calculated to be 5200 years. What percentage of a sample of the pure element will remain after two half-lives?
23.
The use of nuclear power in place of coal, oil, and natural gas greatly reduces emissions of carbon dioxide and other greenhouse gases.
24.
Two hydrogen nuclei undergo fission to produce a helium nucleus.
25.
Gamma, beta and alpha radiation are all alike because:
26.
The mass defect of a particular reaction resulted in the production of 5.50 x 1015 joules of energy. What mass (if totally converted to energy) would correspond to this amount of energy? (1 J = 1 kg m2/s2)
27.
Radon-222 is a radioactive gas with a half-life of 3.82 days. How long would it take for fifteen-sixteenths of a sample of radon-222 to decay?
28.
Two protons, when joined together, have less mass than two single separate protons; this �lost� amount of extra mass can be justified by Einstein’s formula, E = mc2.
29.
What is the mass of a beta particle?
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admin2021-04-05 21:44:402023-12-01 07:37:00nuclear chemistry, assignment help
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