## Interactions Between Ions and Molecules

JTieu_1L
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### Interactions Between Ions and Molecules

Why are ion and ion interactions stronger?

Melody Haratian 2J
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### Re: Interactions Between Ions and Molecules

Ion ion interactions are stronger because ions are fully charged. An example is NaCl, Na has a full +1 charge and Cl has a full -1 charge. Ions are fully charged because the cation loses its electrons and the anion gains electrons. These large and opposite charge values create a big attraction. The other interactions are weaker since their atoms have partial charges ( delta) and are not fully charged like ions.

Brian Bui 3H
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### Re: Interactions Between Ions and Molecules

Ion-ion interactions are stronger because they are have full negative/positive charges from gaining/losing electrons, and the negative and positive charges attract each other. Hope this helps!

Massimo_Capozza_1G
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### Re: Interactions Between Ions and Molecules

Melody Haratian 3K wrote:Ion ion interactions are stronger because ions are fully charged. An example is NaCl, Na has a full +1 charge, and Cl has a full -1 charge. Ions are fully charged because the cation loses its electrons, and the anion gains electrons. These large and opposite charge values create a big attraction. The other interactions are weaker since their atoms have partial charges ( delta) and are not fully charged like ions.

Does this only apply to ions in the solid form, because aren't ion interactions weak in aqueous and other polar solutions?

Peter DePaul 1E
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### Re: Interactions Between Ions and Molecules

ion-ion interactions are significantly stronger because when the two opposite charged atoms come together, one side tends to be significantly more positive then the other and the other atom is significantly more negative. For example NaCl, Na is the positive side and Cl is the negative side. This also can be looked at by Coulombs Formula $Force=\frac{q_{1}q_{2}}{d^{2}}$, where the q's are the respective charges of atoms and d is the distance between the atoms centers. The force generated in this scenario is very strong, making it rather difficult to separate the atoms from one another (breaking the bond)

Melody Haratian 2J
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### Re: Interactions Between Ions and Molecules

Massimo_Capozza_1H wrote:
Melody Haratian 3K wrote:Ion ion interactions are stronger because ions are fully charged. An example is NaCl, Na has a full +1 charge, and Cl has a full -1 charge. Ions are fully charged because the cation loses its electrons, and the anion gains electrons. These large and opposite charge values create a big attraction. The other interactions are weaker since their atoms have partial charges ( delta) and are not fully charged like ions.

Does this only apply to ions in the solid form, because aren't ion interactions weak in aqueous and other polar solutions?

Ion interactions become ion dipole interactions in water because the positively charged cation will interact with the negatively charged dipole (Oxygen) and the negatively charged anion will interact with the positively charged dipole ( hydrogen). Ion ion interactions dissociate in water and become ion dipole interactions instead.

Taber Ball 1F
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### Re: Interactions Between Ions and Molecules

Hi! So just confirming my understanding:

Ion--ion interactions are stronger because they have full negative and positive charges which attract each other. Other interactions are not as strong because the charges are only partial.

Please let me know if this looks like a complete and accurate summation or if there's anything I should add. Thank you!

Kelly Singh
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### Re: Interactions Between Ions and Molecules

Taber Ball 1F wrote:Hi! So just confirming my understanding:

Ion--ion interactions are stronger because they have full negative and positive charges which attract each other. Other interactions are not as strong because the charges are only partial.

Please let me know if this looks like a complete and accurate summation or if there's anything I should add. Thank you!

That's exactly right :)