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4 Written questions

4 Multiple choice questions

  1. non-metals, group 18, the most non-reactive elements
  2. Groups 3-12, 1-2 electrons in the outer energy level, less reactive than alsali-earth metals, shiny, good conductor of thermal energy and electrical current, high density
  3. elements belonging to group two on the periodic table. They are less reactive and harder than alkali metals.
  4. highly reactive, group 1

4 True/False questions

  1. groupVertical column in the periodic table


  2. HalogensVertical column in the periodic table


  3. Periodic Tablea tabular arrangement of the chemical elements according to atomic number as based on the periodic law


  4. Periodichorizontal row of elements in the periodic table