Chemistry

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Across
  1. 3. The smallest particle of an element
  2. 4. A state of matter where the particles are moving quickly and freely
  3. 7. Group of two or atoms held together
  4. 8. Neutral subatomic particle in the nucleus of an atom
  5. 9. Negatively charges subatomic particle
  6. 10. Two or more elements chemically bound together
  7. 12. A substance we start within a chemical reaction
  8. 13. Anything that takes up space
  9. 14. Substance that is made up of one type of atom
Down
  1. 1. The number of protons
  2. 2. Form of matter with a definite volume but no fixed shape
  3. 5. State of matter where the particles are held in a fixed position
  4. 6. Substances produced within a chemical reaction
  5. 11. Positively charged particle in the nucleus of an atom