Bonding Definition and 198 Threads

So I never got too far into chemistry and had never had much thought put into this. What exactly causes an ionic bond? And I mean, I know the usual 'one atom releases an electron and another gains it, causing net electric charges on both atoms', but what causes the electron to leave an atom to...

Does CN neutral exist? if it will their will be a triple bond but their will be 1 single electron left in the carbon atom now if answer is yes i am all good but if no then why can't 1 unpaired electron remain unbonded?why has it always got to be a "pair" of electrons?

Homework Statement All molecular compounds may have London, Dipole-Dipole, and hydrogen bonding intermolecular forces, affecting their physical and chemical properties. Indicate which intermolecular forces contribute to the attraction between molecules in each of the following classes of...

hello, to preview chemical bonds must be considered only the electrons in the last sublevel and not the electrons in all the level? for example my book talking of carbon sp hybridation say that we shouldn't expect it make 4 bounds but only 3, why if the carbon need exactly 4 electron to...

Good day to all, I'm a newbie to the site and I have a quick question for all you electrical geniuses out there. I will start of with a bit of insight into my question. I am a maintenance Controls Technician in the automotive industry who has some experience, in my earlier years, doing...

Question 1: When hybridization takes place, how do all the hybridized orbitals have the same energy? Here is an extract from my book: sp2 Hybridisation in C2H4: In the formation of ethene molecule, one of the sp2 hybrid orbitals of carbon atom overlaps axially with sp2 hybridised...

Sorry to butt in on your form. Please can someone help me with this – I’m sure it’s simple to those who know but I have been thinking about these 2 problems for ages (and reading up on every website I can find) and still no answer. I am trying to get a basic understanding of this and seem to...

This may be a simple question, but I still haven't a clear answer to it. How do atoms bond together? What force is used to bond them together?? (Please if you could answer both of these questions it would be great.) Thanks.

Applying a little hippie to chemistry, suppose there are two H (hydrogen) atoms that are at a distance apart that each of their one electrons are very, very weakly attracted to each other. Now suppose that the process of the formation of the covalent bond, which is instantaneous, were slowed...

Chemical bonding force. Help me understand how chemists describe this force! So one proton has a positive charge. One electron has a negative charge. When we bring them together, that makes one hydrogen atom. The positive proton and the negative electron cancel each other out. Perfect! But...

Every water molecule is H-bonded with up to four other molecules (two through its two lone pairs, and two through its two hydrogen atoms. These 4 intermolecular hydrogen bonds are what contribute to water's high boiling point.. My textbook compares this with Fluorine, which it says can...

So far we've learned that ionic bonding is between metals and non metals, now we are learning about covalent bonding, so far it seems that covalent bonding is only between non metals. Is this true?

Hi all, Currently, I'm reading the paper: Direct to indirect band gap transition in ultrathin ZnO nanowires under uniaxial compression [APPLIED PHYSICS LETTERS 94, 113114, 2009]. You can download this paper from the following url...

Homework Statement Other molecular orbital combinations, besides that in Problem 5, may be formed out of products like \Psi\footnotesize+(r1)\Psi\footnotesize-(r2) and \Psi\footnotesize-(r1)\Psi\footnotesize-(r2) times singlet or triplet spin functions. Five additional functions , all...

I have some questions about molecular bonding. I understand that intramolecular bonds (forces holding a molecule together) are stronger than intermolecular bonds (forces between molecules). I also understand that the strength of intermolecular bonds determines whether something is gas (no bond)...

When we stack orbitals we get bands. Bands result in bonding and anti-bonding. Now for Na his s band is half full resulting in the top half to be conductive shell of anti-bonding orbitals. Take Mg for instance. So his s band is completely full. Why does it conduct ? Because, as I learned, p...

Hi there! I'm studying the hydrogen molecule. According to the MO technique I start from one-electron molecular orbitals to construct the wave function of the entire molecule. Afa hydrogen is concerned, I can construct two ^1\Sigma_g orbitals: \Phi_A=\Phi_g(1)\Phi_g(2)\chi_{0,0}...

I need to bond lead to Inconel? Is this possible? One method I thought about trying is to bond a second metal to the Inconel then bond the Lead(pb) to that> But what would be the steps fluxs and the like?

I've been wondering if atoms were lazy particles, because if Ionic bonding occurs when electrons are taken from one atom to another, and the electrostatic attractions between the oppositely charged particles keep them together, why is it that the covalent bond doesn't go ahead and switch the...

Are elements able to form a wider variety of molecules at lower temperatures vs say 20oC?

Hello; I don't understand the symbols drawn on this diagram; http://upload.wikimedia.org/wikipedia/commons/8/8e/Wasserstoffperoxid.svg I understand that the bond between the two oxygen atoms is a single sigma bond (illustrated by a -), but what are the bonds between the oxygen and...

This at first may sound like a question based in chemistry, but I feel it is more of a particle physics question. When a chemical reaction occurs, it can be exothermic or endothermic. It is my understanding that if bonds are formed, energy is released, and when bonds are broken, energy is...

Hello, I have been doing some research with self assembled monolayers. I was wondering if a molecule terminating in -OH was able to bond with a silicon wafer in atmospheric conditions?

Rank the following base pairs according to their stability. Rank from most to least stable. To rank items as equivalent, overlap them. ------------- I have found out that the first one is thymine-adenine pair and the second one is a cytosine-guanine pair. The third one is cytosine...

For inorganic molecules, is ionic or covalent bonding more common?

Homework Statement A) Potassium Methoxide, KOCH3 has both covalent & ionic bonds...Which are which? B) Why do you suppose no one has created a stable cyclopentyne molecule? C) How many electrons does a positively charged Carbon atom in a carbocation (C+H3) have? Why is it trigonal...

My lecturer writes the following in his lecture notes: “ Covalent: Usually saturated, and usually form short scale structure (molecules), but can form strong giant structures too (e.g. diamond). e clouds distorted. One or more electron from each atom form -ve region between atoms.” What...

Is MO theory the most accurate model for atomic bonding we have so far? I've seen how it can be used to predict paramagnetism and diamagnetism but the idea of antibonding electrons and orbitals is seems fairly bizarre to me.

In chemistry I learned the bonding rules that I learned for various molecules never mentioned anything about the different energy levels in electrons. Now that I know electrons can have various energy levels from absorption of photons, I would like to know if this changes the behavior of...

What spray glue to bond Polyurethane foam or urethanes? I’ve tried using several products but they just don’t work.

a-) In 1954 Linus Pauling was awarded the Chemistry Nobel Prize for his work on the nature of the chemical bond. Covalent bonds are one example of intramolecular bonding. Explain the formation of the following: i) \sigma (sigma) bonding ii) \pi (pi) bonding iii) double bonds iv) triple...

Homework Statement If removing electrons from atoms requires energy, and adding electrons to atoms usually liberates energy, then why is energy liberated when the ionic compound NaCl forms from the elements sodium and chlorine?Homework Equations NoneThe Attempt at a Solution My solutions manual...

The bonding in diborane is unique as it involves two 3c-2e bonds. Most books show the overlapping as between two sp3 orbitals of B atoms and s orbital of H atom.But the bond angle between the terminal H atoms and central B atom is 120, as if the B atom were sp2 hybrid. Any ideas?

Did anyone here ever successfully wire bond Chromel, Manganin, Konstantan or some other such material with low ductility? What is the key to success here? Pad temperature? Pressure? Power? Is gold still the best pad material? I heard also the needle makes a difference?

I posted this elsewhere but I wasn't sure if physics people were lurking on the chem forum. I want to understand MO and LCAO. The chapters in Levine weren't enough. Are there other books on bonding that people know of?

Homework Statement Ignoring any orbitals not in the valence shell how many orbitals are in each of the following molecules? How many are bonding, nonbonding, and antibonding? How many orbitals are occupied? Co2Homework Equations The Attempt at a Solution The answer it gives in the book is 4 of...

If an electron follows the quantum mechanics wave model then how does it undergo bonding? I don't understand how electron transfer occurs in bonding with the wave model. It is simple as explained by the point model but I just don't see the other case based on electrons as a wave?

Methemoglobinanemia is when the iron atom in the heme group of hemoglobin is oxidized to the +3 state. In this oxidation state, the heme group is unable to carry oxygen. Why is this? A ton of the sources I have come across explain the condition of methemoglobinanemia and simply say that the...

Does anybody know how to find bonding force of an optical electron and the nucleus of ion Cr3+ (in pink ruby during normal and excited states (excitement of light))? And also how to find the magnetic moment of the same electron during EPR (during excitement by a radiowave)? Condition of the...

Ok I understand that O2 wants to have a stable number of electrons for its period which is 8 and so it shares two pairs of electrons. But what about S8. I thought it would form S2. Why is it forming S8, what is the logic. Cheers Damian

This is probably something I should know, but I don't want to wait and ask my professor. In the combustion of H2, assuming O2 is plentiful enough not to be a limiting reactant, H2O forms as a result of the O-H bond being more stable than the bonds between two H or two O. Is this due to the...

Hi, Would somebody know if it is possible to bond pvdf piezoelectric material on glasse or teflon without making it losing its piezoelectric properties? Thank you! Damien

Anyone aware of the Physics of Hydrogen Bonding ?? Please suggest resources ! Hi everyone, Am a grad student doing experimental research in an interdisciplinary lab of nanoscience - I am using the concept of hydrogen bonding in some of my experiments. I am planning to...

When Carbon double bonds to another carbon, does one of each's electrons move like this? http://img27.imageshack.us/img27/4566/bondb.jpg

I have done an experiment in which I measured the time and depth of the vortex of water, paint thinner (varsol), and vegetable oil. Water had the deepest and longest lasting vortex, paint thinner was a little less, then oil had a very minimal vortex that was gone right away. Now I'm trying...

Homework Statement The following structures illustrate hydrogen bonding interactions between amino acid side chains and/or backbone atoms within a protein structure. In which of the following figures are the structures and hydrogen bonding completely correct? Homework Equations...

the temperature for the following to reach a pressure of 100mmHg is as follows(celcius)) HI -> -72.1 HCl -> -114 HBr -> -97.7 HF -> -28.2 how can this be? since they are all combinations of H and an element of the last column before the noble gas surely the smaller the size of the...

Electrical "bonding" in high voltage line maintenance Consider a high voltage line worker about to exit a helicopter on to a high voltage "live" line, as in this video : As the helicopter approaches the HV line, the worker holds out a conducting rod. I am led to believe this is to...

hydrogen bonding with NH3 please.help.ASAP! Homework Statement NH3 is a donor & acceptor of hydrogen in hydrogen bond formation...Draw a diagram to show the H bonding of an ammonia molecule w/2 other NH3 molecule. Homework Equations The Attempt at a Solution this is waht i...

Hello, I'm trying to figure out how to seal a circuit as described in this thread: https://www.physicsforums.com/showthread.php?p=2068433&posted=1#post2068433 My question to you chemical engineers, do you guys know of any sort of bonding material (like epoxy) which will not dissolve in...