Topic 9: Periodic Table

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Across
  1. 3. Element in Group III, Period 4
  2. 5. The group of elements between Group II and Group III are known as the ___ metals
  3. 9. Elements in the periodic table are arranged in order of increasing ___ number from left to right across the period.
  4. 10. Protons, neutrons and electrons are collectively known as the ___ particles.
  5. 11. Group 8 or Group 0 elements are known to be unreactive. What is another word for unreactive?
  6. 13. Name of the horizontal rows in the periodic table
  7. 14. Collective name of Group VII ions
Down
  1. 1. The most reactive metal
  2. 2. The elements between the metals and non-metals on the periodic table are called ___
  3. 3. Name of the vertical columns in the periodic table
  4. 4. Group VII elements form molecules with two atoms. They are called ___ molecules.
  5. 6. Group I elements are known as ___ metals
  6. 7. name of Group VII elements
  7. 8. The most reactive non-metal
  8. 12. Metals ___ electrons to form cations.