Atomic Structure and Periodic Table Quiz
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Questions and Answers

What is the basic structure of an atom?

  • A nucleus of electrons surrounded by a cloud of protons and neutrons
  • A nucleus of protons and electrons surrounded by a cloud of neutrons
  • A nucleus of protons and neutrons surrounded by a cloud of electrons (correct)
  • A nucleus of neutrons and electrons surrounded by a cloud of protons

    • What defines the isotope of an element?

  • The number of neutrons (correct)
  • The number of protons
  • The number of positrons
  • The number of electrons

    • How are chemical elements distinguished from each other?

  • By the number of neutrons in their atoms
  • By the number of positrons in their atoms
  • By the number of electrons in their atoms
  • By the number of protons in their atoms (correct)

    • Why is it not possible to see atoms with conventional microscopes?

    <p>Because they are smaller than the shortest wavelength of visible light</p> Signup and view all the answers

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

    <p>In the nucleus</p> Signup and view all the answers

    What is the basic structure of an atom?

    <p>A nucleus of protons and neutrons surrounded by a cloud of electrons</p> Signup and view all the answers

    How are chemical elements distinguished from each other?

    <p>By the number of protons in their atoms</p> Signup and view all the answers

    What defines the isotope of an element?

    <p>The number of neutrons</p> Signup and view all the answers

    Why is it not possible to see atoms with conventional microscopes?

    <p>Atoms are smaller than the shortest wavelength of visible light</p> Signup and view all the answers

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

    <p>In the nucleus</p> Signup and view all the answers

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