The sources of X-rays and gamma rays,respectively,are
A) electron clouds and the atomic nucleus.
B) the atomic nucleus and electron clouds.
C) both electron clouds.
D) both the atomic nucleus.
E) none of these
Correct Answer:
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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
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
Q12: The atomic mass number of an element
Q69: Deuterium and tritium are both
A)forms of hydrogen.
B)isotopes
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