Chemistry Unit 3
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Questions and Answers

Which concept led to the development of the Periodic Table?

  • Recognizing periodic trends
  • Explaining ionization enthalpy
  • Naming elements with Z >100
  • Grouping elements by their properties (correct)

    • What is the basis for periodic classification?

  • Naming elements with Z >100
  • Atomic number and electronic configuration (correct)
  • Periodic trends in physical and chemical properties
  • Grouping elements by their properties

    • What are the main characteristics of s, p, d, and f blocks?

  • Different metallic characters
  • Different reactivity levels (correct)
  • Different electron gain enthalpy
  • Different atomic radii

    • What does the relationship between ionization enthalpy and metallic character explain?

    <p>The occurrence of elements in nature</p> Signup and view all the answers

    What does the Periodic Law state?

    <p>The elements are arranged in order of increasing atomic number</p> Signup and view all the answers

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