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문제 59a
Identify each of the following as alpha decay, beta decay, positron emission, or gamma emission:
a. 27m13Al → 2713Al + 00γ
문제 60a
Identify each of the following as alpha decay, beta decay, positron emission, or gamma emission:
a. 12755Cs → 12754Xe + 0+1e
문제 60b
Identify each of the following as alpha decay, beta decay, positron emission, or gamma emission:
b. 9038Sr → 9039Y + 0–1e
문제 60c
Identify each of the following as alpha decay, beta decay, positron emission, or gamma emission:
c. 21885At → 21483Bi + 42He
문제 62e
Write the balanced nuclear equation for each of the following:
e. In-113m (γ emission)
문제 63d
Complete each of the following nuclear equations:
d. 23m12Mg → ? + 00γ
문제 65a
Write the balanced nuclear equation for each of the following:
a. When two oxygen-16 atoms collide, one of the products is an alpha particle.
문제 66a
Write the balanced nuclear equation for each of the following:
a. Polonium-210 decays to give lead-206.
문제 70a
What are the products in the fission of uranium-235 that make possible a nuclear chain reaction?
문제 71
Where does fusion occur naturally?
문제 81
All the elements beyond uranium, the transuranium elements, have been prepared by bombardment and are not naturally occurring elements. The first transuranium element neptunium, Np, was prepared by bombarding U-238 with neutrons to form a neptunium atom and a beta particle. Complete the following equation:
10n + 23892U →? + ?
문제 86
The half-life for the radioactive decay of Ce-141 is 32.5 days. If a sample has an activity of 4.0 µCi after 130 days have elapsed, what was the initial activity, in microcuries, of the sample?