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iren2701 [21]
3 years ago
7

Uranium-234 decays to lead-214 through a series of alpha decays. Which of the following is the total number of alpha particles e

mitted in this decay series?
A. 1
B. 2
C. 5
D. 10
Chemistry
1 answer:
wariber [46]3 years ago
4 0
An alpha particle has a mass number of 4.
The mass number in the decay of uranium-234 to lead-214 decreases from 234 to 214, so by 20.
20 ÷ 4 = 5
5 alpha particles were emitted in this decay series. The answer is C.
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First, we need to calculate the principal quantum number n for this electron, using the equation:
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6 0
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