Chemical Reactions

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Across
  1. 2. formed between nonmetal atoms with shared electrons
  2. 3. releases energy, usually in the form of heat
  3. 4. atoms rearrange to form new substances
  4. 5. attraction between oppositely charged ions
  5. 7. new substances formed
  6. 8. highest energy level
  7. 9. neutral group of atoms joined by covalent bonds
  8. 13. absorbs energy
  9. 14. force of attraction that holds atoms together
  10. 15. alters the form or appearance of a substance
Down
  1. 1. symbol surrounded by dots
  2. 4. 3D arrangement
  3. 5. an atom or a group of atoms with an electric charge
  4. 6. a way to show chemical reactions with symbols
  5. 10. a group of symbols that shows the ratios of elements
  6. 11. substances that undergo chemical changes
  7. 12. a solid that forms from liquid during a chemical reaction