The mass of an atomic nucleon is nearly
A) twice the mass of an electron.
B) four times the mass of an electron.
C) a thousand times the mass of an electron.
D) two thousand times the mass of an electron.
Correct Answer:
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Q1: When a nucleus emits a beta particle,its
Q2: X-rays are similar to
A)alpha rays.
B)beta rays.
C)gamma rays.
D)all
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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