Chemistry Vocab Terms

1234567891011121314151617181920
Across
  1. 2. Neutral charged particle
  2. 4. Positively charged particle
  3. 5. Two or more elements that are joined by chemical bonds
  4. 7. Reaction absorbs energy
  5. 11. Outermost electrons
  6. 15. Good conductor of heat and electricity
  7. 16. Once called "Inert"
  8. 18. An atom with a negative or positive charge
  9. 19. Has seven valence electrons
  10. 20. Negatively charged particle
Down
  1. 1. Vertical rows on the periodic table
  2. 3. Reaction loses energy
  3. 6. Separation of elements in a reaction
  4. 8. Semi-Conductor
  5. 9. Bond between metals
  6. 10. A pure substance that can't be broken down
  7. 12. First group
  8. 13. Where electrons are found in atoms
  9. 14. Alternating pattern of negative and positive ions
  10. 17. Two elements required for reactions