Periodic Table Basics
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Questions and Answers

What is the main organizing principle of the periodic table?

  • Arrangement by electronegativity
  • Arrangement by atomic number (correct)
  • Arrangement by metallicity
  • Arrangement by atomic mass

    • What is the approximate recurrence of properties mentioned in the periodic law based on?

  • Arrangement by atomic mass
  • Arrangement by number of protons
  • Arrangement by atomic number (correct)
  • Arrangement by number of electrons

    • In which direction does metallic character generally increase within the periodic table?

  • From top to bottom within a group (correct)
  • From right to left across a period
  • From left to right across a period
  • From bottom to top within a group

    • Who formulated the first generally accepted periodic table?

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

    What was used to predict some properties of missing elements in Mendeleev's periodic table?

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

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