Across
- 3. covalent bond in which two pairs of electrons are shared between two atoms
- 6. compound containing two different elements
- 7. distance between the nuclei of two bonded atoms at which the lowest potential energy is achieved
- 8. charge that would result on an atom by taking the number of valence electrons on the neutral atom and subtracting the nonbonding electrons and the number of bonds (one-half of the bonding electrons)
- 12. bond formed when electrons are shared between atoms
- 14. diagram showing lone pairs and bonding pairs of electrons in a molecule or an ion
- 15. situation in which one Lewis structure is insufficient to describe the bonding in a molecule and the average of multiple structures is observed
- 16. shape in which three outside groups are placed in a flat triangle around a central atom with 120° angles between each pair and the central atom
- 18. theory used to predict the bond angles in a molecule based on positioning regions of high electron density as far apart as possible to minimize electrostatic repulsion
- 19. bond in which a single pair of electrons is shared between two atoms
Down
- 1. bond in which three pairs of electrons are shared between two atoms
- 2. model that describes the changes in the atomic orbitals of an atom when it forms a covalent compound
- 4. model that describes the behavior of electrons delocalized throughout a molecule in terms of the combination of atomic wave functions
- 5. strong electrostatic force of attraction between cations and anions in an ionic compound
- 9. guideline that states main group atoms will form structures in which eight valence electrons interact with each nucleus, counting bonding electrons as interacting with both atoms connected by the bond
- 10. arrangement of atoms in a molecule or ion
- 11. shape in which four outside groups are placed around a central atom such that a three-dimensional shape is generated with four corners and 109.5° angles between each pair and the central atom
- 13. shape in which five outside groups are placed around a central atom such that three form a flat triangle with 120° angles between each pair and the central atom, and the other two form the apex of two pyramids, one above and one below the triangular plane
- 17. two (a pair of) valence electrons that are not used to form a covalent bond
- 19. covalent bond formed by overlap of atomic orbitals along the internuclear axis