U2 Xword

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Across
  1. 3. Positively charged ion
  2. 5. Element that is dull and a poor conductor
  3. 7. Electrons in the outermost shell
  4. 8. Bond formed by electron transfer
  5. 9. Two or more atoms bonded together
  6. 10. Repeating ionic crystal structure
  7. 12. Horizontal row on the periodic table
  8. 16. Smallest unit of an element
  9. 17. Element with properties of metals and nonmetals
  10. 19. Weak force caused by temporary electron shifts
  11. 21. Shiny element that conducts electricity
  12. 23. Bond with equal sharing of electrons
  13. 24. Ability of an atom to attract electrons
Down
  1. 1. Weighted average of all isotopes
  2. 2. Rule stating atoms want eight valence electrons
  3. 4. Negatively charged ion
  4. 6. Vertical column on the periodic table
  5. 7. Model used to predict molecular shapes
  6. 11. Bond formed by sharing electrons
  7. 13. Pure substance made of one type of atom
  8. 14. Bond with unequal sharing of electrons
  9. 15. Number of protons in an atom
  10. 18. Atom or group with a charge
  11. 20. One- or two-letter abbreviation for an element
  12. 22. Strong attraction involving H and N/O/F