TommyKeith: Chemical Bonding

There are three types of chemical bonding:
1) Ionic bonding- the transfer between 2 atoms to form a positive ion and negative ion.
2) Non-polar covalent bonding- equal sharing of electrons
3) Polar covalent bonding- unequal sharing of electrons

The first two bondings we have already learned from previous classes, so lets started with the new bonding - Polar covalent bonding

First, we have to know the electronegativity. The difference in electronegativity will determine the electron sharing. To determine the difference, there's a formula we have to notice!:

ENeg Diff. = lENeg1 - ENeg 2l

If ENeg Diff <0.5 it's a non polar covalent bond

If ENeg Diff > 0.5 and <1.8 it's a polar covalent bond

If ENeg Diff > 1.8 it's an ionic bond

Atoms with Higher Electronegativity
will form a PARTIAL NEGATIVE charge

•δ- (between 0 and -1)

Atoms with Lower
Electronegativity
will form a PARTIAL
POSITIVE charge

•δ+(between 0 and +1)

INTRAmolecular forces are found within a molecule, responsible for holding the atoms of a molecule together

INTERmolecular forces are found between the molecules, responsible for the bonding between molecules

Polarity -  Describes a molecule's electrical balance.

According to the electronegativity from each element. By subtracting two atoms in the compound. The number as a result will tell us that what kind of bonding it is.

For example: