products for alpha,
beta, and gamma decay
and identify: alpha
and beta particles; gamma
and balance nuclear
equations for alpha, beta, and gamma decay
the makings of a nuclear
the relative radioactivity of FiestaWare
and background radiation (laboratory)
and balance nuclear equations/Predict products for alpha, beta, and
Write an equation
for each of the following:
A. aluminum-26 undergoes positron emission
B. potassium-40 undergoes beta decay (electron)
C. uranium-238 undergoes alpha decay
D. the product of a beta decay is magnesium-24
E. the product of an alpha decay is uranium-232
F. indium-110 decays to cadmium-110
G. radon-222 decays to polonium-218
H. gallium-67 decays by electron capture
I. potassium-38 decays with positron emission
J. manganese-56 decays by beta emission
1. Tritium (H-3)
is a radioactive isotope of hydrogen with a half-life of 12.3 years.
How long would it takes for a 40.0 g sample to decay down to 1.25 g?
2. Fe-61 has
a half-life of 6.00 min. Of a 100.0 mg sample, how much will remain
after 18.0 min?
3. After 20.0
days, a 120 kg sample of Bi-210 decays down to just 7.5 kg. What is
4. What percent
of a sample of Co-60 (half-life = 5 years) will decay after 25 years?
5. K-42 has a
half-life of 12.0 hours. At present, a given ore sample contains 34.2
mg of K-42. How much did it contain yesterday at this same time?