Atomic Structure and the Periodic Table
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Questions and Answers

What is the primary factor that distinguishes one chemical element from another?

  • Number of protons (correct)
  • Size of the atom
  • Number of electrons
  • Number of neutrons

    • Why can't humans see atoms with conventional microscopes?

  • Atoms are smaller than the shortest wavelength of visible light (correct)
  • Atoms are transparent
  • Atoms emit invisible light
  • Atoms are too big to be seen

    • Which subatomic particle defines the isotope of an element?

  • Neutrons (correct)
  • Electrons
  • Nucleus
  • Protons

    • What is the charge of a proton?

    <p>Positive</p> Signup and view all the answers

    Where is the majority of an atom's mass located?

    <p>Nucleus</p> Signup and view all the answers

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