In the symbol 238U, the 238 is
A) the mass number.
B) the atomic number.
C) the number of neutrons in the atom.
D) the number of protons in the atom.
Correct Answer:
Verified
Q5: Cobalt-60
A) is used to treat cancerous tumors.
B)
Q6: Who first discovered radioactivity?
A) Ernest Rutherford
B) Max
Q7: What type of particle is emitted when
Q8: Stable nuclei (that is, nonradioactive nuclei) have
Q9: Which is larger in terms of radioactive
Q11: To make an alpha particle fuse with
Q12: Who was first to produce and describe
Q13: The product of the alpha (
Q14: The nuclear reaction that changes one element
Q15: If the half-life of an element is
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