Y10 Chemistry Alexander McKay

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Across
  1. 3. the chance that the results of an experiment were a fluke
  2. 4. a substance formed with two or more elements
  3. 6. the colour when potassium cholride is burned
  4. 7. the outermost electron shell
  5. 8. the most least reactive group of elements on the far right of the periodic table
  6. 9. the amount of energy needed to start a reaction
  7. 10. most reactive group on the periodic table on the far left
  8. 13. size of distance from nucleus to outermost electron
  9. 14. has properties between those of metals and non-metals
  10. 15. energy needed to remove outermost electrons
Down
  1. 1. an atom with a different number of neutrons than protons
  2. 2. the degree to which an element tends to gain electrons and form negative ions in chemical reactions
  3. 5. the smaller number under the element letters on the periodic table
  4. 11. burns red colour when burned
  5. 12. the number of protons in an element on the periodic table