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4 Written questions

4 Multiple choice questions

  1. non-metals, group 18, the most non-reactive elements
  2. elements belonging to group two on the periodic table. They are less reactive and harder than alkali metals.
  3. Russian Chemist, demonstrated a connection between atomic mass and elemental properties arranged the elements in order of increasing atomic mass predicted the existence and properties of undiscovered elements, Russian chemist who developed a periodic table of the chemical elements and predicted the discovery of several new elements
  4. proposed modern periodic table, arranged table in order of atomic number instead of mass, came up with periodic law--physical and chemical properties of the elements are periodic functions of thier atomic number

4 True/False questions

  1. Periodic Tablethe principle that chemical properties of the elements are periodic functions of their atomic numbers


  2. Akali Metalshighly reactive, group 1


  3. Periodichorizontal row of elements in the periodic table


  4. Periodic Lawrecurring or reappearing from time to time