The Periodic Table of Elements by Lucy Pankow

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Across
  1. 4. bond between a metal and a metal
  2. 5. a unit of mass that describes the mass of an atom or a molecule
  3. 8. a horizontal row of elements in the periodic table
  4. 11. a substance made up of atoms of two or more different elements joined by chemical bonds
  5. 12. an element that conducts heat and electricity poorly
  6. 14. in physical science an atoms central region which is made up of protons and neutrons
  7. 17. type of metal that is easily combined
  8. 18. makes up the universe
  9. 19. a subatomic particle that has no charge and is found in the nucleus of an atom
Down
  1. 1. an element that is shiny and that conducts heat and electricity well
  2. 2. bond between a metal and a nonmetal
  3. 3. number of protons and neutrons in an atom
  4. 5. the mass of an atom expressed in atomic mass units
  5. 6. element that have have properties of both metals and nonmetals
  6. 7. a vertical column of elements in the periodic table
  7. 9. name for the most important elements
  8. 10. bond between a nonmetal and a nonmetal
  9. 13. a subatomic particle that has a negative charge
  10. 15. a substance that cannot be separated or broken down into simpler substances by chemical means
  11. 16. a subatomic particle that has a positive charge and that is found in the nucleus of an atom