The Periodic Table Terms

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Across
  1. 2. can be drawn or pulled into wire
  2. 6. positive ion formed when an atom loses electrons
  3. 7. length equal to half the distance between the nuclei of two covalently bonded atoms
  4. 11. equal to the number of protons plus neutrons
  5. 13. the electrons in the outermost shell of an atom
  6. 15. negative ion formed when an atom gains electrons
Down
  1. 1. measure of an atom’s attraction for electrons when bonded to another atom
  2. 3. rows on the periodic table
  3. 4. also called families; column on the periodic table
  4. 5. are shiny
  5. 8. amount of energy needed to remove the most loosely bound electron from an atom
  6. 9. equal to the number of protons in an atom
  7. 10. can be hammered into a shape
  8. 12. properties of the elements are periodic functions of their atomic numbers
  9. 14. atoms that have gained or lost one or more of its valence electrons