Periodic table vocabulary review

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Across
  1. 4. The total number of protons and neutrons in the nucleus of an atom.
  2. 5. A homogeneous mixture of two or more substances in which one substance, the solute, is dissolved in another substance, the solvent.
  3. 9. The amount of solute that can be dissolved in a given amount of solvent at a given temperature.
  4. 11. The number of protons in the nucleus of an atom.
  5. 12. Noble gases
  6. 14. A solution that contains the maximum amount of solute that can be dissolved at a given temperature.
  7. 16. A substance that is made up of two or more elements chemically combined.
  8. 18. Highly reactive nonmetals that have seven valence electrons.
  9. 19. Alkali metals
  10. 20. A solution that contains more solute than it can dissolve at a given temperature.
Down
  1. 1. The force that holds atoms together in a molecule.
  2. 2. A substance that is made up of two or more elements or compounds that are not chemically combined.
  3. 3. The outermost electron in an atom.
  4. 6. A solution that contains less solute than it can dissolve at a given temperature.
  5. 7. Unreactive gases that have a full valence shell of electrons.
  6. 8. Highly reactive metals that have one valence electron.
  7. 10. An atom or group of atoms that has lost or gained electrons.
  8. 13. The substance that is dissolved in a solution.
  9. 15. The substance that does the dissolving in a solution.
  10. 17. Halogens