Atomic Structure Quiz
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Questions and Answers

What is the difference between Cl 35 and Cl 37?

  • Atomic mass
  • Number of neutrons (correct)
  • Number of protons
  • Number of electrons

    • What is the maximum number of electrons in the first energy level?

  • 6
  • 10
  • 2 (correct)
  • 14

    • What principle is used to fill orbitals with electrons in an atom?

  • Electron configuration principle
  • Atomic mass principle
  • Centripetal force principle
  • Aufbau principle (correct)

    • What is the maximum number of electrons in a p subshell?

    <p>6</p> Signup and view all the answers

    How do you write electron configurations for an element?

    <p>Start with hydrogen and build the configuration one electron at a time</p> Signup and view all the answers

    What is the reason for exceptions to the Aufbau principle in d and f block elements?

    <p>Orbital interactions</p> Signup and view all the answers

    What is the role of centripetal force in electrons orbiting the nucleus?

    <p>It opposes the pull of the nucleus on the electrons moving in a circular path.</p> Signup and view all the answers

    What is the charge of an ion with 19 protons and 21 electrons?

    <p>-1</p> Signup and view all the answers

    What is the term for positively charged particles discovered by Eugen Goldstein?

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

    What is the atomic number of an atom with 20 protons in its nucleus?

    <p>20</p> Signup and view all the answers

    What is the term for the number of protons and neutrons in the nucleus?

    <p>Mass number</p> Signup and view all the answers

    What is the relationship between the number of electrons and protons in a neutral atom?

    <p>The number of electrons is equal to the number of protons.</p> Signup and view all the answers

    What is the main reason why materials with 1 - 3 valence electrons are considered conductors of electricity?

    <p>They tend to easily give away their 1 - 3 valence electrons to acquire stability following the octet rule.</p> Signup and view all the answers

    What happens to the material when free electrons move in different directions?

    <p>The material acquires a static electric charge.</p> Signup and view all the answers

    What is required to harness the power of static electricity?

    <p>Applying pressure to the material using a battery.</p> Signup and view all the answers

    What determines whether a material is a conductor, insulator, or semiconductor?

    <p>The number of valence electrons in the atomic structure.</p> Signup and view all the answers

    What is the term for electrons that are free to wander around the surface of a substance?

    <p>Free electrons.</p> Signup and view all the answers

    What is the purpose of a battery in harnessing the power of static electricity?

    <p>To move free electrons in a single direction.</p> Signup and view all the answers

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