00:01
Covalent bonds involve the sharing of electron pairs between two atoms.
00:05
These atoms can share a single pair of electrons or multiple pairs of electrons.
00:13
A single covalent bond involves the sharing of one pair of electrons.
00:20
A double covalent bond involves the sharing of two pairs of electrons.
00:26
And a triple bond involves the sharing of three pairs of electrons.
00:32
An example that we have of a single covalent bond is h2.
00:43
Each hydrogen has one valence electron.
00:50
So these two electrons would come together to form the single covalent bond.
01:00
An example of a double covalent bond is carbon dioxide, co2.
01:06
The carbon atom has four valence electrons.
01:13
And each oxygen has six valence electrons.
01:21
So we would have our central carbon atom and we would attach two oxygen atoms.
01:42
So here we can see that the octets are not fulfilled on either carbon or oxygen.
01:49
The oxygens only have seven electrons, and the carbon only has six electrons.
02:00
So what we can do is we can make double bonds...