The atomic number of an element is the number of
A) protons.
B) protons and neutrons.
C) protons and electrons.
D) all the particles in the atom.
Correct Answer:
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Q3: An electron moves from one orbital to
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Q5: Protons and neutrons have about the same
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Q7: Protons are so much more massive than
Q9: Neutral atoms of a given element all
Q10: Robert Millikan discovered that
A)the charge to mass
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Q12: The atomic number of an element is
Q13: J.J.Thomson discovered that cathode rays were really
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