Bond Lengths

[Lillie Yazdi 3J]

For resonance structures, is it favored to stack up on bonds or have as many single bonds as you can?

[Ryan Burchell 3D]

It depends on the formal charges for that particular molecule.

[Natalie Gibson 1c]

Hi! It really depends on the molecule that is in question. The main point of resonance is finding a way to minimize formal charges, so for some molecules this might mean removing bonds and adding in lone pairs, but for others this might entail removing lone pairs and adding in bonds. Because of this, there really is no set rule for whether single or multiple bonds is better, you have to take in by a case-by-case approach.

[Tyler Olson 1E]

It depends on the situation and what elements are in the molecule. The amount of bonds vs lone pairs will affect the formal change of each element so that will be what you need to look at in each scenario.

[Aparna Pillai 1E]

The amount of single/double/triple bonds is less important than the formal charges on each atom. The goal is to get the formal charges as close to zero as possible and have any negative formal charge on the most electronegative element. Because each bond subtracts 1 from the number of valence electrons to contribute to the formal charge, the number of bonds can be adjusted accordingly, depending on the molecule, to obtain the most ideal formal charges for the most stable structure.

[Natalie Quilala 1I]

You will need to take into account the atoms in the molecule for the bonds in a molecule. For halogens, they prefer having a single bond, as they have 7 valence electrons and a single bond is the most stable for a halogen (with a formal charge of zero!). For group 6 elements (like oxygen), they prefer a double bond, as they have 6 valence electrons and a double bond with two lone pairs achieves a formal charge of zero. Valence electrons are often indicators of the number of bonds needed.

[kiara chan]

it really depends on the molecules, the best strategy i'd offer you is to check the formal charges

[Sean Sanders 1E]

The formal charge is more important than the specific bonds between atoms when it comes to resonance structures. The structure with the least number of atoms with formal charges will be the favored structure.

[erud]

It would depend on the specific molecule that you are looking at, and its formal charges.

[Natasha]

The formal charge for each individual molecule determines bond usage.

[Thailer Phorn 1C]

In regards to resonance structures, it's not necessarily the amount of bonds that's important, but rather the formal charge. It is ideal for the formal charges to be as close to zero as possible, and the bonds can affect that, but it honestly depends on the molecule.

[Mario Prado 1K]

Hello,

It really depends not eh molecule you have. You can start of with single bonds if it works but then you really ant to look t the formal charges. The formal charges will dictate if you need single, double, or even triple bonds in that place.

Hope this helps.

[505784197]

It depends on the formal charges!

[Kristen Bansil 1G]

For this situation, it is dependent on the formal charges of the molecule and the goal such as trying to find a plausible resonance structure or reduce the number of charges as close to 0 as possible!

[kareena_prasad]

It depends on the formal charges. If formal charges are closer to 0 with more single bonds, then yes. If not, then no.

[Srikar_Chintala_1E]

The different types of bonds you have depend on formal charge and the octet rule.

[505706331]

there isn't a set rule on what type of bonds you should use. rather try focusing more on formal charge and getting all the atoms to have a formal charge of 0

[Jordyn Lee 1J]

hi, it does not depend on the type of bond to determine the most stable structure. It depends on the formal charges of the atoms, which should normally be close to zero.

[Alessandra Marotta 3L]

Hi, the formal charge of the molecule is most important rather than the bond type as that varies from molecule to molecule. So it is best to keep in mind the amount of bonds and the lone pairs as those effect formal charge.

[BriannaDis2C]

Resonance structures have bond lengths that are determined by formal charge of each element involved in the structure

[Jason Ho 2L]

Stacking bonds depends on the molecule itself and the formal charge for each atom (with the point of minimizing formal charge as much as possible).

[Madison Rhynhart 3H]

Stacking bonds really depends on the molecule and the most stable resonance structure in question. Sometimes, stacking bonds (ie. double or triple) results in a more neutral formal charge that balances itself out thus resulting in a more balanced structure or molecules while other times a single bond is more pertinent for this purpose.

[Carmen Kim 3I]

Hi,
It depends on the molecules and their formal charges. Also, the formal charges of the atoms/molecules must be close to zero.

[Coraly De Leon]

Hi,
It will depend on the formal charges of the molecules since the charge of each molecule will determine the use of the bond.

[AndreyCastellanos 3H]

Depends on the formal charges for that particular molecule

[Emily Hou 1H]

The bonds you use would depend on the unique molecule and the formal charges.

[Om Patel]

yes so when bond order increases bond length decreases

[505686385]

When dealing with resonance structures, you would like each atom to have 0 or nearest to 0 formal charge. So having the least amount of single bonds does not matter, unless the atoms in the molecule have 0 or nearest to 0 formal charge (like CH4 that has only single bonds and 0 formal charge all around). But with a molecule like SO4, the best resonance structure is one that has two double bonds and two single bonds because the formal charges become 0 and -1 and its atoms. Which is more reasonable than only having single bonds on this molecule, making -1 FC on H and +2 FC on S.

[Ashrita Singh 2F]

I don't think it is favored to stack bonds or have single bonds. I believe that the arrangement that is favored is just the one that has a formal charge closest to 0.

[ElizabethKarlin2E]

It depends on how many electrons you have to create bonds with. If you can't make the atoms that need an octet have an octet with single bonds, you will have to start making double or triple bonds.

[AndreyCastellanos 3H]

It mostly depends on the molecule in question and trying to make the formal charge closest to zero because it all varies

[Trisha Nagin]

It depends on the formals charges, and least amount of charge is preferred because it will be the most stable.

[Jahnavi Srinivas 2H]

It depends on which arrangement of the structure will give you the most ideal formal charge, or in other words the arrangement that is closest to 0.

[Anubhav_Chandla1G]

In order to figure out whether or not to create single, double, or triple bonds, it's important to look at the formal charges and resonant structures. The resonant structure with the least amount of charge will be the most probable structure, thus leading to a structure that has a certain amount of single, double, and triple bonds.

[Tony Chen 1F]

You should assign different types of bonds (single, double, triple) in order to minimize the formal charge on atoms. And for bond length, from longest to shortest, it's single, double, then triple

[Amaris Cagungun 1F]

It would depend on the formal charge of the molecule. You want to have a formal charge equal to 0 or as close as possible to 0.

[Edriana J Altea 2G]

This can only be determined by calculating the formal charge. You would have to see which way would be the one that's closest to a formal charge of 0, and you would go for that one.

[Colby Irvine 2A]

It depends on formal charges and what electronegativity of each atom is.