Chapter 2. Polar Covalent Bonds: Acid and Bases. Chapter 2 - Definitions. Polar Covalent Bonds – electrons are even distributed between two atoms in a molecule. Electronegativity - the attractiveness of an atom to an electron in a bond. Dipole Moment – is the total net molecular polarity.
Polar Covalent Bonds: Acid and Bases
Same color denotes similar electronegativities and a covalent bond.
Pick the polar molecule(s). And its(their) vectors.
Formal # of valence e- # of valence e-
charge (free atom) (bound atom)
Formal # of valence e- Half of # of
Charge bonding e- nonbonding e-
1) Number 1 and 2 are resonance forms
2) Although resonance forms many not be equivalent, 1 and 2 are
Why does this oxygen have a negative charge?
This oxygen has a negative charge because it has taken an electron from a hydrogen giving it a negative electron and a charge of -1. This completes its octet with 8 electrons
In Dilute Solutions