Honors Physical Science Unit 1

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Across
  1. 2. representation of the valence electrons of an atom that uses dots around the symbol of the element
  2. 3. the basic unit of a chemical element
  3. 7. elements with properties of both metals and nonmetals
  4. 9. a subatomic particle with a negative electric charge
  5. 11. an element that readily forms positive ions (cations) and has metallic bonds
  6. 12. a horizontal row of the periodic table
  7. 13. the ability of a substance to be molded into a different shape
  8. 17. a subatomic particle with a positive electric charge
  9. 19. an element that lacks the characteristics of a metal
  10. 20. an element that can conduct electricity under some conditions but not others
Down
  1. 1. contain 2 atoms that are chemically bonded
  2. 4. a tiny particle which makes up protons and neutrons
  3. 5. the mass of an atom, neutrons and protons added together
  4. 6. variants of an element with the same number of protons but different number of neutrons
  5. 8. each of 2 or more different physical forms in which an element can exist
  6. 10. a subatomic particle with no electric charge
  7. 14. the number of protons in the nucleus of an atom, used to identify elements
  8. 15. a vertical row of the periodic table
  9. 16. capable of being hammered out thin or stretched into wires
  10. 18. the positively charged center core of an atom consisting of protons and neutrons