An alpha particle is another name for a(n)
A) electron.
B) proton.
C) neutron.
D) helium nucleus.
E) photon.
Correct Answer:
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Q41: The expression(s)indicating the number of protons in
Q42: After three half-lives,3/4 of the nuclei in
Q43: An alpha particle is like 
Q44: How big is the nucleus of an
Q45: What's an isotope?
A)a radioactive material
B)an atom of
Q47: Why is nuclear reactor waste radioactive?
A)Radiation from
Q48: A gamma ray is another name for
Q49: What holds the nucleus together?
A)electrical forces between
Q50: The energy of nuclear radiation as it
Q51: Two isotopes have the same
A)mass number.
B)neutron number.
C)atomic
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