An atom's mass number is determined by the number of
A) protons in its nucleus.
B) nucleons in its nucleus.
C) electron masses in its nucleus.
D) neutrons in its nucleus.
E) alpha particles in its nucleus.
Correct Answer:
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Q4: Name five different types of radiation detectors.
Q5: J. J. Thomson
A) observed back-scattering from nuclei.
B)
Q6: Ernest Rutherford
A) observed back-scattering from nuclei.
B) proposed
Q7: Compared to the electrostatic force, the nuclear
Q8: The number of protons in a neutral
Q10: Isotopes of an element have nuclei with
A)
Q11: All isotopes are unstable which have proton
Q12: When an alpha particle is emitted from
Q13: When a neutron is emitted from an
Q14: When a
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