Chemistry Elements and Periodic Table Quiz
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Questions and Answers

What was the main criterion used by Mendeleev to organize the elements in his periodic table?

  • Increasing atomic number
  • Chemical reactivity
  • Physical state
  • Increasing atomic mass (correct)
  • The modern periodic table organizes elements based on their atomic mass.

    False

    Who compiled the first comprehensive list of elements in the late 18th century?

    Lavoisier

    As of now, there are a total of __________ known elements.

    <p>118</p> Signup and view all the answers

    Match the following historical milestones with their corresponding details:

    <p>Lavoisier = Compiled a list of 23 elements Mendeleev = Created the first periodic table By 1870 = There were 65 known elements By 1925 = There were 88 known elements</p> Signup and view all the answers

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