## Favorable Bonds

Moderators: Chem_Mod, Chem_Admin

Brandon Valafar
Posts: 112
Joined: Sat Aug 17, 2019 12:16 am
Been upvoted: 1 time

### Favorable Bonds

How many bonds would Nitrogen and Oxygen like to have?

karinaseth_1A
Posts: 57
Joined: Sat Jul 20, 2019 12:15 am

### Re: Favorable Bonds

Nitrogen would want 3 and oxygen would want 2. However, depending on the molecule and formal charge distribution this can change. Neither of these elements can accommodate anything less or more than an octet, however.

Rohit Ghosh 4F
Posts: 99
Joined: Thu Jul 25, 2019 12:17 am

### Re: Favorable Bonds

The number of bonds these atoms actually have is also dependent on what other atom it's bonding with.

Vicki Liu 2L
Posts: 101
Joined: Sat Aug 24, 2019 12:15 am

### Re: Favorable Bonds

To expand on the first response, the reasoning behind why nitrogen atoms would want 3 bonds and oxygen atoms would want 2 is because this gets them to a formal charge of zero.

If N has 3 bonds, it would need 1 lone pair to have a completed octet. So, formal charge = 5 - (2 + 6/2) = 0
If O has 2 bonds, it would need 2 lone pairs to have a completed octet. So, formal charge = 6 - (4 + 4/2) = 0

Having a formal charge of 0 means the atoms are at their lowest energy and stable, which is favorable.

Manav Govil 1B
Posts: 104
Joined: Sat Sep 07, 2019 12:19 am

### Re: Favorable Bonds

Although N and O have favorable bonds, certain structures require them to have more or fewer bonds - causing them to have a charge. For example, NO+ shows a triple bond between the N and the O. The N is pleased with a formal charge of 0, but the O has a formal charge of +1, which causes the positive nature of the molecule.

Giselle Littleton 1F
Posts: 78
Joined: Wed Sep 18, 2019 12:20 am

### Re: Favorable Bonds

To form an octet, oxygen needs 2 electrons while nitrogen needs 3. But unless the atom(s) they're bonded to is specified, the more bonds the harder it is to break the molecule.

Return to “Lewis Structures”

### Who is online

Users browsing this forum: No registered users and 1 guest