Chemistry

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Across
  1. 3. a negative charged atom
  2. 5. a type of bond where the electrons are shared
  3. 6. energy sub-level
  4. 7. a charged atom
  5. 8. group 17 family in the periodic table
  6. 9. the smallest noble gas element
  7. 13. outermost electrons
  8. 14. the best subject in grade 10
Down
  1. 1. Elements that surround the middle stair-step line
  2. 2. a positive charged atom
  3. 4. group 18 family in the periodic table
  4. 8. the smallest element in the periodic table
  5. 10. a type of bond where the electrons are transferred
  6. 11. the unit of mass used in the moles formula
  7. 12. hydrochloric acid molecular formula