The Periodic Table Overview
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Questions and Answers

Which of the following is a common property of metals?

  • Large electronegativity
  • Malleability (correct)
  • Brittle solids
  • Poor conductors of heat and electricity

    • What happens to the atomic radius as you go across a period in the periodic table?

  • Increases
  • Becomes smaller (correct)
  • Doubles
  • Stays the same

    • Which elements tend to have a high oxidizing nature?

  • Large metallic character
  • Have a smaller number of valence electrons
  • Found in the upper right corner of the periodic table (correct)
  • Have a large electron affinity

    • What characterizes elements in the bottom left corner of the periodic table?

    <p>Large metallic character</p> Signup and view all the answers

    What describes the trend of electronegativity as you go down a group in the periodic table?

    <p>Becomes smaller</p> Signup and view all the answers

    What is the Periodic Table of Elements?

    <p>An organized model that includes all of the elements discovered throughout history</p> Signup and view all the answers

    Why was Johann Dobereiner's triad theory dismissed by the scientific community?

    <p>There was insufficient evidence to support the concept of triads</p> Signup and view all the answers

    What information can be found in each element's box on the Periodic Table?

    <p>Symbol, atomic number, name, and atomic mass</p> Signup and view all the answers

    Why is the data provided by the Periodic Table useful to scientists in chemistry?

    <p>It provides information on the properties of each element</p> Signup and view all the answers

    What is the main focus of Johann Dobereiner's work on triads?

    <p>Discovering groups of elements with similar properties</p> Signup and view all the answers

    Who is known as the 'Father of the Periodic Table'?

    <p>Dmitri Mendeleev</p> Signup and view all the answers

    What was the observation that led to the creation of the Law of Octaves?

    <p>Every eighth element was similar</p> Signup and view all the answers

    How did Dmitri Mendeleev arrange the elements in the periodic table?

    <p>By increasing atomic weight</p> Signup and view all the answers

    What did Henry Moseley discover about the elements' frequencies when organizing the periodic table?

    <p>The frequencies formed a stable, straight line</p> Signup and view all the answers

    How many periods are there in the periodic table?

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

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