Alex will get 0% in chemistry

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Across
  1. 2. tenth element from periodic table
  2. 5. forty seventh element from periodic table
  3. 7. nitrate zinc plus nitrogen
  4. 8. third element from periodic table
Down
  1. 1. highest reactive metal
  2. 3. this will produce aluminium oxide when you add with oxygen
  3. 4. it rust slowly in cold water
  4. 6. No reaction with cold or hot water, very shiny and expensive