Chemistry Crossword Test

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Across
  1. 2. The smallest particle of an element that retains the properties of that element.
  2. 5. The number of protons in an atom’s nucleus.
  3. 6. An element that does not conduct electricity and is brittle.
  4. 10. A method used to separate substances in a mixture.
  5. 12. Atoms of the same element with different numbers of neutrons.
  6. 13. An insoluble solid formed in a solution during a chemical reaction.
  7. 14. A combination of substances not chemically bonded.
  8. 17. A regular repeating arrangement of particles in a solid.
  9. 19. A negatively charged subatomic particle orbiting the nucleus.
  10. 21. A soluble base that releases hydroxide ions in solution.
  11. 22. A method to separate an insoluble solid from a liquid.
  12. 23. The total number of protons and neutrons in an atom.
  13. 25. A liquid that dissolves a solute to form a solution.
  14. 28. A method to separate mixtures based on boiling points.
  15. 29. Two or more atoms bonded together covalently.
  16. 30. A vertical column in the periodic table.
  17. 31. A positively charged subatomic particle in the nucleus.
  18. 32. A homogeneous mixture of solute and solvent.
  19. 34. The central part of an atom containing protons and neutrons.
  20. 35. A substance that donates hydrogen ions in solution.
Down
  1. 1. A bond formed when atoms share electrons.
  2. 3. An atom or molecule with a positive or negative charge.
  3. 4. A chart of elements arranged by atomic number.
  4. 7. A substance that can neutralise an acid.
  5. 8. A compound formed from the reaction of an acid with a base.
  6. 9. A pure substance made of only one type of atom.
  7. 11. A reaction between an acid and a base to form salt and water.
  8. 15. A bond formed through the transfer of electrons.
  9. 16. A subatomic particle with no charge found in the nucleus.
  10. 18. A substance that dissolves in a solvent.
  11. 20. A reaction in which a substance gains oxygen or loses electrons.
  12. 24. An element that conducts electricity and heat, usually malleable.
  13. 26. The process of removing a liquid to obtain a solid.
  14. 27. A substance formed when two or more elements are chemically bonded.
  15. 33. A horizontal row in the periodic table.