Chem 6.3 Lewis Structures for Molecules Flashcards
Polyatomic ion
A group of covalently bonded atoms with an overall charge
Characteristics of a central atom
Lowest en, all other atoms bonded to it
What are atoms in the 3rd row or below capable of doing
Expanding their octets, because they can incorporate a d sub level into to bonding
How else can octets rule be violated
Less than 8 (be, h)
Off number of e (N)
What’s so special about Fl
Never central atom, higher en, only single bonds
What involving distance of atoms causes high potential energy
Too close or far
What involving distance of atoms causes low potential energy
Ideal distance also most stable
Bond length
Distance between nuclei of bonded atoms
When does bond length occur
When attraction has reached a maximum value and repulsion has reached a minimum value