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CHEM 160
Big FO test 3-18-26
| Question | Answer |
|---|---|
| ionic compound properties | strong ionic bond melt and boil at high temp insulators (cannot conduct electricity) - when molten can nconduct electricity electrlyes are good conductors when dissolved inw ater metal and nonmetal |
| polyatomic ions | group of atoms that are cavelntly bonded together |
| oxyanions | polyatomic ion that has oxygen as one of its component |
| covalent compounds | two nonmetals |
| naming covalent compounds | greek prefix |
| exceptions to covalent naming rules | ammonia NH3 phosphine PH3 arsine AsH3 hydrazine N2H4 benzene C6H6 water H2O hydrogen peroxide H2O2 |
| covalent bonds | shared electrons electronegativty resonance |
| ionin bonding | electrons are completely transferred |
| metallic bonding | free sea of electrons |
| exceptions to the octet rule | electron deficient central atom hypervalent central atom (elements in period > 3) |
| atoms that can do multiple bonds | CONS-Se |
| formal charge | Valence E - (# Bonds + Unpaired E) |
| how a structure is the optimal form related to formal charge | formal charge is as close to the value 0 as possible any sum of formal charge in an ion equals that charge of that ion any negative formal charge resides on a strongly electronegative element |