Unit Four Vocab Crossword

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Across
  1. 3. An atom’s ability to attract electrons toward itself when forming a bond
  2. 5. A _ covalent bond is one in which one atom contributes BOTH electrons to the shared pair rather than one electron coming from each atom
  3. 6. The name for a non-bonding pair of electrons
  4. 8. A type of bonding involving only metal atoms in which the electrons are delocalized and move freely amongst all atoms in the lattice
  5. 12. A group of covalently bonded atoms consisting of two or more different types of atoms
  6. 13. The charge, or _ number, is the total number of electrons that an element gains or loses to form a stable ion
  7. 15. An element that exists in nature as a single atom is called _
  8. 16. A _ bond shares two pairs of electrons
  9. 17. A chemical formula for a covalently bonded compound is also called a _ formula
  10. 21. Covalent compounds are generally soft and flexible with low melting and boiling points, and they are NOT _
  11. 25. When a compound can be accurately represented by more than one possible lewis dot structure, these structures are called _ structures
  12. 26. Bonding occurs when the forces of attraction are _ than those of repulsion
  13. 27. The energy required to break a chemical bond and form neutral atoms
  14. 28. Bonded atoms have less _ energy than single atoms and are more energetically stable
  15. 31. The orderly arrangement of positive and negative ions in an ionic compound is called a _
  16. 32. Potential energy and stability have a(n) _ relationship
Down
  1. 1. When an ionic compound forms, the oppositely charged ions add up to a total net charge of _
  2. 2. Any formula that indicates the relative number of each type of atom in a compound using symbols and subscripts
  3. 4. Ionic compounds tend to form crystalline solids, they have high melting and boiling points, and they _ in water
  4. 7. A _ ion is a group of covalently bonded atoms that have an overall charge, and thus can bond ionically to another ion
  5. 9. A mutual electrical attraction between atoms that binds them together and forms a compound
  6. 10. The simplest ratio of ions in an ionic compound which retains the same physical and chemical properties is the _
  7. 11. Bonding pairs of electrons in covalent lewis structures are represented by drawing a _
  8. 14. A type of bond that results from an electrical attraction due to a gain or loss of electrons
  9. 15. A neutral group of atoms held together by covalent bonds that contains the smallest unit that still maintains the physical and chemical properties of the compound
  10. 16. A type of molecule containing two identical bonded atoms
  11. 18. _ increases potential energy
  12. 19. Potential energy is a form of _ energy that can be converted into another form
  13. 20. A type of bond in which electrons are shared between atoms to form a compound
  14. 22. According to the _ _, atoms will gain, lose, or share electrons to obtain a full outer shell that is energetically stable
  15. 23. A covalent bond in which electrons are NOT equally shared
  16. 24. A covalent bond in which electrons ARE equally shared
  17. 27. The distance between two bonded atoms when at their lowest potential energy
  18. 29. Molecules are most energetically stable when the forces of repulsion and the forces of attraction are _
  19. 30. Attraction _ potential energy