The number of protons in a neutral atom is
A) equal to the number of neutrons.
B) equal to the number of electrons.
C) called the mass number.
D) the same for all elements.
E) zero.
Correct Answer:
Verified
Q3: Why do the high-proton-number elements tend to
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
Q9: An atom's mass number is determined by
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
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