Polar and nonpolar which is stronger

Comparing the bond strength between a polar bond and non-polar bond Ask Question. Asked 2 years, 11 months ago. Active 2 years, 11 months ago. Viewed 5k times. Improve this question. Jasmine Jasmine 3 3 silver badges 13 13 bronze badges. At the end the polar character of a bond is an intrinsic result and not something that is formed after or on top of a preexisting bond.

Size and shape of the bond matter, too. Note that I and Cl are both halogens so ICl isn't much polar. The same is true for the final statement. Ionic bond are very strong and easily the covalent ones can be much weaker - at least in vacuum! Is wrong reason given in my book if yes then how will you relate oxidising power of hypohalous acid? Still take what the book say. You take all given order or label as absolute Do not do that. I didn't say what you claim.

Now one puppy has two electron bones and one puppy has none. Because the electron bones in our analogy have a negative charge, the puppy thief becomes negatively charged due to the additional bone.

The puppy that lost its electron bone becomes positively charged. Because the puppy who lost his bone has the opposite charge of the thief puppy, the puppies are held together by electrostatic forces, just like sodium and chloride ions! In our analogy, each puppy again starts out with an electron bone.

Some covalently bonded molecules, like chlorine gas Cl2 , equally share their electrons like two equally strong puppies each holding both bones. Other covalently bonded molecules, like hydrogen fluoride gas HF , do not share electrons equally. The fluorine atom acts as a slightly stronger puppy that pulls a bit harder on the shared electrons see Fig. Even though the electrons in hydrogen fluoride are shared, the fluorine side of a water molecule pulls harder on the negatively charged shared electrons and becomes negatively charged.

The hydrogen atom has a slightly positively charge because it cannot hold as tightly to the negative electron bones. Covalent molecules with this type of uneven charge distribution are polar.

Molecules with polar covalent bonds have a positive and negative side. In this analogy, each puppy represents an atom and each bone represents an electron. Water H2O , like hydrogen fluoride HF , is a polar covalent molecule. When you look at a diagram of water see Fig. The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles - a positive charge on the hydrogen pole side and a negative charge on the oxygen pole side.

We say that the water molecule is electrically polar. Each diagram shows the unsymmetrical shape of the water molecule. In part c , the polar covalent bonds are shown as electron dots shared by the oxygen and hydrogen atoms. Ionic bonds are easily broken as seen in the dissolving of salt NaCl an ionic compound in water. In Polar covalent molecules the sharing of the electrons are unequal which makes them easier to break apart. An example is water. This leaves a difference of 1.

Water in the atmosphere is broken down into free Oxygen and Hydrogen by the solar radiation. Which is why the atmosphere has always had oxygen in it. In nonpolar covalent molecules the electrons are shared completely equally. Why are nonpolar covalent bonds the strongest? David Drayer.