Question by yourmomsalooser: 1. The half-life of cobalt 60 is 5.3 years. What fraction of a sample remains after 21.2 years? ?
one half
one quarter
one eighth
one sixteenth
Question 2 2.5 points Save
Transmutation does not occur in which of these nuclear processes?
nuclear fission
nuclear fusion
alpha decay
gamma decay
Question 3 2.5 points Save
Based on its location on the periodic table, an element that is not naturally occuring is
terbium (Tb).
curium (Cm).
holmium (Ho).
lutetium (Lu).
Question 4 2.5 points Save
Nuclear power plants generate electricity from
nuclear fusion.
nuclear fission.
combustion.
radioactivity.
Question 5 2.5 points Save
The most penetrating form of nuclear radiation is
an alpha particle.
a beta particle.
a gamma ray.
an electron.
Question 6 2.5 points Save
The primary reaction inside stars changes
hydrogen to helium.
helium to hydrogen.
uranium to plutonium.
nitrogen to carbon.
Question 7 2.5 points Save
Which of the following is radioisotope commonly used in dating archeological artifacts?
nitrogen-14
carbon-12
uranium-235
carbon-14
Question 8 2.5 points Save
An alpha particle is identical to
a neutron.
a helium nucleus.
an electron.
a hydrogen nucleus.
Question 9 2.5 points Save
When a beta particle is emitted, the mass number of a nucleus
increases by one.
decreases by one.
decreases by four.
remains the same.
Question 10 2.5 points Save
Nuclear particles are held together by
the strong nuclear force.
electrical attraction.
quarks.
electrical repulsion.
Best answer:
Answer by Scott P
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