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Which of the following radioactive nuclei is most likely to decay via emission of a β−β− particle?
a. neptunium-237.
b. magnesium-23.
c. iodine-131.
d. rubidium-83.
e. nitrogen-13.

Answer :

Answer:

iodine-131

Explanation:

Beta emission involves the conversion of a neutron to a proton and an electron. This process increases the atomic number of the daughter nucleus by 1 unit while the mass number remains the same.

Beta emission decreases the N/P ratio and is the ideal decay mod for nuclides that have a very large number of neutrons such as iodine-131.

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