Important Chapter 7 Terms

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Across
  1. 1. Bond: two pairs of electrons are shared
  2. 3. electrons: shield the valence electrons from the nucleus
  3. 5. negatively charged
  4. 7. Charge: determines how plausible a lewis structure is
  5. 8. length:smaller bonds have larger bond lengths
  6. 9. Electrons: electrons in the highest occupied energy level of an atom
  7. 11. Bonds: are less likely to undergo chemical change than a weaker bond
  8. 13. Series: a group of ions all containing the same amount of electrons
  9. 15. Bonds: unequal sharing of electrons
  10. 17. exception to octet rule as it only requires 4 electrons to be full
  11. 22. are shared in pairs
  12. 23. Polarity: nonpolar or polar bond
  13. 26. Energy: energy required to completely separate a mole of a solid ionic compound into its gaseous ions
  14. 27. Energy: amount of energy necessary to remove an electron from an isolated neutral atom in the gaseous state
  15. 29. effective nuclear charge taking into account attraction and repulsions
  16. 31. positively charged
Down
  1. 2. exception to octet rule as it only requires 6 electrons to be full
  2. 4. Bonds: usually occur in molecular compounds such as metals and non-metals
  3. 6. Bond: one pair of electrons are shared
  4. 10. Geometry: 3D geometry of a molecule
  5. 12. ionization energy: energy needed to remove the first electron
  6. 14. ability of a nucleus to attract an electron in a covalent bond to itself
  7. 16. Rule: nonmetals will share electrons to acquire 8 total valence rules
  8. 18. organic molecule present in aromatic compounds
  9. 19. Dot Structures: drawing to represent valence electrons
  10. 20. Radius: determined from distance between nuclei in ionic compounds
  11. 21. Bonds: electrons are shared equally between atoms
  12. 24. Structures: valid electrons structures to describe the bonding in a moleule
  13. 25. Radii: half the distance between the nuclei of two like atoms
  14. 28. Electrons: largely responsible for chemical properties of an element
  15. 30. Shells: only occur in period 3 and below