year 8 revision

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Across
  1. 2. Group of elements that get more reactive as you go down the periodic table.
  2. 4. Grouping elements in threes(triads) based on properties.
  3. 6. Element in group 2 period 3.
  4. 8. When a chemical reaction has the same number of each atom on each side.
  5. 11. Scientist who ordered elements based on atomic mass.
  6. 12. A type of reaction that is easily reversed.
  7. 13. Group of elements that get less reactive as you go down the periodic table.
  8. 14. 2 or more elements or compounds not chemically bonded.
  9. 15. Scientist who ordered elements based on properties into groups of 8.
Down
  1. 1. A material made of multiple different materials to get the best properties.
  2. 3. Made by firing clay.
  3. 5. All one type of atom.
  4. 7. Element with atomic number 6.
  5. 9. Two or more elements chemically bonded
  6. 10. A type of reaction where the mass changes, it is hard to reverse.
  7. 13. Group of elements that have almost no reactivity.