When a nucleus emits a beta particle,its atomic number
A) remains constant,but its mass number changes.
B) remains constant,and so does its mass number.
C) changes,but its mass number remains constant.
D) changes,and so does its mass number.
E) none of these
Correct Answer:
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Q2: X-rays are similar to
A)alpha rays.
B)beta rays.
C)gamma rays.
D)all
Q3: The mass of an atomic nucleon is
Q4: Which radiation has no electric charge associated
Q5: The half-life on an isotope is one
Q6: The half-life of an isotope is one
Q7: The half-life of a radioactive substance is
Q8: The sources of X-rays and gamma rays,respectively,are
A)electron
Q9: An atom with an imbalance of electrons
Q10: Different isotopes of an element have different
Q11: A nucleon is either
A)a positron or an
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