Chemistry

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Across
  1. 3. the consistent arrangement of atoms within a molecule
  2. 5. when a chemical reaction absorbs heat (energy)
  3. 6. large particle with no charge which makes up atoms
  4. 7. The positive or negative charge of an atom or molecule
  5. 8. when a chemical reaction releases heat (energy)
  6. 10. building blocks of all matter
  7. 12. when two or more atoms join together
Down
  1. 1. large positively charged particle which makes up atoms
  2. 2. small particle with a negative charge which orbits the nucleus of atoms
  3. 4. When a chemical reaction produces a solid and a liquid
  4. 9. a substance with a high pH
  5. 11. a substance with a low pH