The atomic number of an element is the total number of protons and neutrons in the nucleus.
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Q7: Protons are so much more massive than
Q8: The atomic number of an element is
Q9: Neutral atoms of a given element all
Q10: Robert Millikan discovered that
A)the charge to mass
Q11: Millikan found that all of the oil
Q13: J.J.Thomson discovered that cathode rays were really
Q14: Elements in the same row of the
Q15: Niels Bohr's model of the hydrogen atom
A)was
Q16: When Rutherford found that some of the
Q17: The word halogen comes from the Greek,
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