Bonding and Chemical Reactions CH3 Flashcards
What molecules ALWAYS abide by the octet rule?
- Carbon
- Nitrogen
- Fluoride
- Magnesium
- Sodium
If an electron’s covalent bond is shared equally it is?
Nonpolar
If an electron’s covalent bond is shared unequally it is?
Polar
Ionic bonds are generally formed between a ____ and a ______.
metal and nonmetal
Covalent bonds are generally formed between a ______ and a ______.
nonmetal and nonmetal (of similar electronegativity)
Explain a polar bond.
A polar bond will create a dipole, where the positive end is on the less electronegative atom and the negative end is on the more electronegative atom.
This is a bond where both of the shared electrons originated on the same atom.
Coordinate Covalent Bond
Any compound that will accept a lone pair of electrons.
Lewis Acid
Any compound that will donate a pair of electrons to form a covalent bond.
Lewis Base
A definite nonpolar covalent bond will form with what elements on the period table?
Seven Diatomic Elements (#7 shape)
What are three points in determining the most stable resonance structure?
- Structure with the none or least formal charges.
- Structure with the least separation between opposite charges.
- Structure with the negative formal charge over the most electronegative atom.
Desrcibes the spatial arrangement of all pairs of electrons around the central atom, including both the bonding and lone pairs.
Electronic Geometry
Describes the spatial arrangment of only the bonding pairs of electrons.
Molecular Geometry