Ch. 14 & 15 Crossword Puzzle

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Across
  1. 2. The vertical columns of the periodic table.
  2. 5. An element with high electrical conductivity and is malleable.
  3. 8. A solution that is the same throughout.
  4. 12. Extremely reactive metals in group 1 of the Periodic Table.
  5. 13. this part of the atom has no charge and is found in the nucleus.
  6. 15. Extremely reactive nonmetals in group 17 of the Periodic Table.
  7. 16. The fourth state of matter.
  8. 17. The temperature scale to calculate down to absolute zero.
  9. 18. This is an atom with extra neutrons. It is unstable and will decay over time.
Down
  1. 1. A solution that is not the same throughout.
  2. 3. The horizontal rows of the periodic table.
  3. 4. this part of the atom has a positive charge and is found in the nucleus.
  4. 6. Elements that are non-reactive.
  5. 7. emitting radiation or particles.
  6. 9. This describes an atom with equal amounts of protons and electrons.
  7. 10. Any substance with mass.
  8. 11. A solution of different materials.
  9. 14. this part of the atom has a negative charge and is found in the cloud.