Across
- 3. The electron pairs (both shared and unshared) in the outermost energy level try to get as far apart from each other as possible.
- 7. _____ electrons are in the outermost shell of the atom
- 8. the ____ rule says atoms will gain or lose enough electrons to have the same amount of electrons as a noble gas
- 9. Central atom has one unshared pair and is sharing electrons with 3 other atoms
- 10. ______ bonding involves a sharing of electrons
- 11. Central atom has no unshared pairs and is sharing electrons with 4 other atoms
- 12. The chemical formula for a covalently bonded group of atoms is called a ______ formula.
- 13. CO2 is what geometric shape
- 14. a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds.
- 15. ______ bonding involves a transfer off electrons
Down
- 1. The octet rule says that after losing or gaining electrons an atom will be _____ with a noble gas
- 2. a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds.
- 4. The chemical formula for an ionic compound that is arranged in the smallest whole-number ratio
- 5. covalent bonds are a lot ____ than ionic bonds
- 6. CH2O is what geometric shape (hint _____ planar)
- 14. H2O is what geometric shape