Across
- 3. a structure that occurs when it is possible to write two or more valid electron dot formulas that have the same number of electron pairs for a molecule or ion.
- 6. Two atoms held together by sharing a pair of electrons
- 8. The two weakest attractions between molecules
- 10. a tightly bound group of atoms that has a positive or negative charge and behaves as a unit.
- 11. a covalent bond between atoms in which the electrons are shared unequally.
- 13. the weakest of all molecular interactions, are caused by the motion of electrons.
- 14. a covalent bond in which one atom contributes both bonding electrons.
- 16. represents the covalent bonds by dashes and shows the arrangement of covalently bonded atoms.
- 17. one end of the molecule is slightly negative and the other end is slightly positive.
- 19. A molecule that has two poles is called a dipolar molecule, or
- 20. A compound composed of molecules.
- 22. solids in which all of the atoms are covalently bonded to each other.
- 23. A bond formed by sharing three pairs of electrons
- 24. A bond that involves two shared pairs of electrons
Down
- 1. also known as a polar bond.
- 2. The energy required to break the bond between two covalently bonded atoms
- 4. occur when polar molecules are attracted to one another.
- 5. attractive forces in which a hydrogen covalently bonded to a very electronegative atom is also weakly bonded to an unshared electron pair of another electronegative atom.
- 7. a molecule consisting of two atoms.
- 9. the chemical formula of a molecular compound.
- 12. The atoms held together by sharing electrons are joined by a
- 15. a neutral group of atoms joined together by covalent bonds.
- 18. When the atoms in the bond pull equally (as occurs when identical atoms are bonded), the bonding electrons are shared equally, and the bond is a
- 21. A pair of valence electrons that is not shared between atoms