Thursday, January 2, 2014

Can you list the following chemical bond in term of stability? and MÁV 470 007 "James Bond" érkezik Győrbe az Alpokalja-Kékfrankos IC élén

Can you list the following chemical bond in term of stability?



List the following chemical bond in term of most stable one to least stable one and why?

covalent bonds
hydrogen bonds
ionic bonds
metallic bonds
Van der Waals bonds
The problem is this is in college text book for BioEngineering, and I'm not the one who made up this question.

As for listing the strength of the bond I know that quite well already.

"Rank the following bonding types in terms of stability of bonds:" Is the exact question I copy from the book, anyway if you know it don't bother.


Bond best answer:

Answer by pisgahchemist
Sorry. This is a nonsense question. If it's your question, then I'm sorry, you'll have to do better than that. If it is your teacher's question, then your teacher does not undertstand chemical bonding very well.

Stability??? Do you mean bond strength? You cannot categorically state that one kind of bond is stronger than another. It will depend on the elements involved and the elements around them.

Generally intramolecular bonds are stronger than intermolecular bonds. Therefore the van der Waals forces, which consist of hydrogen bonding, dipole-dipole attraction and London dispersion forces are generally weaker than "ionic", covalent and metallic bonds.

Of the van der Waals forces, it depends on the molecules. Surprisingly, London dispersion forces can be stronger than both hydrogen bonding and dipole-dipole interactions. It simply depends on the molecules involved. It is patently wrong to try to rank these.

As for the intramolecular bonds, again it depends on the situation. Some people might suggest that "ionic" bonds are strongest. Yet the strongest known bonds are between carbon atoms in diamond. Clearly these bonds are 100 percent covalent. It is not so much the type of bonds, but rather, the type of structure. Networks of atoms, regardless of whether they are "ionic" or covalent have the strongest bonds. Because some metals have extremely high melting points, we can classify some metallic bonds as being extremely strong.

I hope you see why this question is hopelessly flawed.

======== Follow up ========

The question is also flawed if nobody knows what the terminology is supposed to mean. Why don't you take a look at this "bioengineering book" and see if you can figure out what they are referring to when they are talking about "bond stability". Try the index.

Is "bond stability" related to the potential energy within a bond? Is "bond stability" related to how likely the bond will remain a bond? Clearly, this is not a well-defined term.

You might compare single, double or triple bonds between the same elements in terms of "stability" but you couldn't do that for the much wider range of bond types and conditions about which your question asks.

I am still of the opinion that your question is flawed.


Bond

MÁV 470 007 "James Bond" érkezik Győrbe az Alpokalja-Kékfrankos IC élén
Bond

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MÁV 470 007 "James Bond" arrives to Győr with Alpokalja-Kékfrankos IC
(2013.03.26)



Orignal From: Can you list the following chemical bond in term of stability? and MÁV 470 007 "James Bond" érkezik Győrbe az Alpokalja-Kékfrankos IC élén

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