Crossword Puzzle Chemistry

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Across
  1. 4. a negatively charged ion
  2. 6. attraction has for a shared pair of electrons
  3. 11. meaning one
  4. 12. the positively charged particles of an atom
  5. 13. meaning two
  6. 15. the total number of electrons that an atom either gains or loses to form a chemical bond
  7. 16. the negatively charged particles around an atom
  8. 17. atoms that have either gained or lost electrons there are two types
Down
  1. 1. A system of terms/rules to name something
  2. 2. A bond formed by the equal sharing of electrons from both participating atoms
  3. 3. the electrons in the outer most electron shell
  4. 5. smallest particle of an element
  5. 7. atoms of the same element but having differing mases
  6. 8. positively charged ion
  7. 9. A bond formed by the electrostatic attraction of oppositely charged ions.
  8. 10. an element that has properties that are intermediate between those of metals and non-metals
  9. 14. meaning more than two