Atoms and Bonding

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Across
  1. 3. bond that forms as a result of the attraction between positive and negative ions
  2. 5. ionic compounds have ________ melting points
  3. 6. shiny and reflective
  4. 7. this element has two electron levels and five valence electrons
  5. 8. this element has four electron levels and two valence electrons
  6. 10. when an atom gains an electron, it becomes a ________ ion
  7. 12. there are this many magnesium ions to chloride ions in magnesium chloride
  8. 13. an ionic ____________ consists of positive and negative ions
  9. 15. able to be rolled into thin sheets
  10. 16. this element has five total electrons
  11. 19. in naming ionic compounds, the name of this ion comes first
  12. 21. an oxygen molecule has one ________ bond
  13. 23. a covalent bond in which electrons are shared unequally
  14. 25. this tells you the ratio of elements in the compound
  15. 27. this molecule is an example of a polar covalent bond
  16. 28. an orderly, three-dimensional arrangement of ions
  17. 29. iodine would have this many dots around it for its electron dot diagram
Down
  1. 1. most molecular compounds do not _______ electric current
  2. 2. magnesium has this many electron levels
  3. 4. those electrons that have the highest energy level
  4. 7. a covalent bond in which electrons are shared equally
  5. 9. type of bond that usually forms when a metal combines with a nonmetal
  6. 11. an atom or group of atoms that has an electric charge
  7. 14. ions that are made of more than one atom
  8. 17. a neutral group of atoms joined by covalent bonds
  9. 18. bond that forms as a result of the attraction between a positive metal ion and the many electrons surrounding it
  10. 20. a nitrogen molecule has one ________ bond
  11. 22. a chemical ___________ is a combination of symbols that shows the ratio of elements in a compound
  12. 24. a mixture made of two or more elements, at least one of which is a metal
  13. 26. means that metals can be bent easily and pulled into thin strands or wires