Chemistry

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Across
  1. 2. – Can never change; subatomic particle inside the nucleus.
  2. 6. – Has two atoms joined or paired together.
  3. 9. – The central part of an atom.
  4. 11. – Ability of a material to let heat or electricity pass through it.
  5. 15. – Movement of particles from a high to low concentration area.
  6. 17. – Change of state from liquid to gas at any temperature.
  7. 18. – A homogeneous mixture of one or more solutes dissolved in a solvent.
  8. 19. – A pure substance made of one kind of atom.
  9. 20. – A very small piece or unit of matter.
Down
  1. 1. – Two or more substances chemically bonded together in a fixed ratio.
  2. 3. – The structure or arrangement of particles in a solid.
  3. 4. – Change of state from gas to liquid.
  4. 5. – Ability of a substance to dissolve in a solvent (liquid).
  5. 7. – Change of state from solid to gas directly.
  6. 8. – Can change; moves around the nucleus.
  7. 10. – A chemical element with the symbol K and atomic number 19.
  8. 12. – Can change; subatomic particle inside the nucleus.
  9. 13. – Two or more substances physically combined.
  10. 14. – Change of state from solid to liquid.
  11. 16. – Conducts heat and electricity easily.